Use of Immune Suppressive Domains as Medicaments

ABSTRACT

The present invention concerns uses of immune suppressive domains. In particular, the present invention concerns a use of an immune suppressive domain (ISD) for immune suppression and for reduction of inflammation.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. Appl. No. 14/783,286, filed 8 Oct. 2015, which is the national phase of PCT/DK2014/050091, filed 10 Apr. 2014, and further claims priority to Danish Appl. Nos. PA 2013 70202, filed 10 Apr. 2013, PA 2013 70200, filed 10 Apr. 2013, and PA 2013 70204, filed 11 Apr. 2013. Each of the aforementioned applications is hereby incorporated by reference in its entirety.

TECHNICAL BACKGROUND

Retroviral infections cause a significant immunosuppression. A small part of the viral glycoprotein induces a significant immunosuppressive effect. This part has been termed the immunosuppressive domain (ISD) and comprise only 17 amino acids. ISD when produced as an isolated 17 amino acid peptide has several effects on the immune response, which among others are: In vitro inhibition of Natural Killer cells, cytotoxic T lymphocytes (CTLs) and inhibition of IL-2 dependent proliferation of T lymphocytes [Cianciolo 1985, Denner 1994, Harrell 1986, Kleinerman 1987]. Furthermore, human endogenous retroviruses can antagonize the immune-dependent elimination of tumor cells injected into immunocompetent mice after transduction of these tumor cells by an envelope-expression vector [Mangeney 1998]. ISD activates intracellular signaling molecules causing inhibition of Th1 cytokines (IL-1a ,IL-2, IL-6 IL-12, INF-α/γ, TNF-α) [Haraguchi 1995, Haraguchi 1995a, Haraguchi 2008, coelcialli 2012]). Finally, a human gene syncytin-2 contains a homologous domain with immunosuppressive activity. This gene is expressed during placental morphogenesis and is believed to be involved in paterno-fetal immune tolerance [Mangeney 2007].

For sepsis many papers has described the desired effect upon the cytokine profile following treatment. Below are reference for three such papers:

In one investigation plasma levels of critically ill patients of resistin, active PAI-1, MCP-1, IL-1 alpha, IL-6, IL-8, IL-10, and TNF-alpha were significantly elevated compared to 60 healthy blood donors. Making these cytokines tagets for downregulation by immunosuppressive peptides (BMC Surg. 2010 Sep 9;10:26.Sepsis induced changes of adipokines and cytokines - septic patients compared to morbidly obese patients.Hillenbrand A, Knippschild U, Weiss M, Schrezenmeier H, Henne-Bruns D, Huber-Lang M, Wolf AM. Department of General-, Visceral-, and Transplantation Surgery, University Hospital of Ulm, Steinhoevelstr, Ulm, Germany. Andreas.Hillenbrand@uniklinik-ulm.)

In a second paper A prospective observational study was used to determine the predictive role of Tumor Necrosis Factor alpha (TNF-α), Interleukin (IL)-1β and IL-6 as three main pro-inflammatory cytokines and Acute Physiology and Chronic Health Evaluation (APACHE II) and Sequential Organ Failure Assessment (SOFA) as two scoring systems in mortality of critically ill patients with severe sepsis. Fifty and five patients with criteria of severe sepsis were included in this study. An exclusion criterion was post Cardiopulmonary Resuscitation (CPR) status. Cytokines (TNF-α, IL-1β and IL-6)were assayed in the first, third and seventh days in blood of patients. RESULTS AND MAJOR CONCLUSION: Among three measured cytokines, sequential levels of TNF-α and IL-6 showed significant differences between survivors and nonsurvivors. IL-6 had a good correlation with outcome and scoring systems during the period of this study. The areas under the receiver operating characteristic (AUROC) curve indicated that APACHE II (0.858, 0.848, 0.861) and IL-6 (0.797, 0.799, 0.899) had discriminative power in prediction of mortality during sequental measured days. Multiple logestic regression analysis identified that evaluation of APACHE II and TNF-α in the first day and APACHE II and IL-6 in the third and seventh days of severe septic patients are independent outcome predictors. Results of this study suggest that IL-6 and APACHE II are useful cytokine and scoring systems respectively in prediction of mortality and clinical evaluation of severe septic patients. (Daru. 2010;18(3):155-62. Identification of enhanced cytokine generation following sepsis. Dream of magic bullet for mortality prediction and therapeutic evaluation. Hamishehkar H, Beigmohammadi MT, Abdollahi M, Ahmadi A, Mahmoodpour A, Mirjalili MR, Abrishami R, Khoshayand MR, Eslami K, Kanani M, Baeeri M, Mojtahedzadeh M. Department of Clinical Pharmacy, aculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran).

Paper 3: J Immunol. 2010 Oct 1;185(7):4302-10. Epub 2010 Sep 3. The agonists of formyl peptide receptors prevent development of severe sepsis after microbial infection. Kim SD, Kim YK, Lee HY, Kim YS, Jeon SG, Baek SH, Song DK, Ryu SH, Bae YS. Department of Biological Sciences, Sungkyunkwan University, Suwon, South Korea.

Autoimmune Diseases

Autoimmune diseases arise from an inappropriate immune response of the body against substances and tissues normally present in the body. In other words, the immune system mistakes some part of the body as a pathogen and attacks its own cells. This may be restricted to certain organs (e.g. in autoimmune thyroiditis) or involve a particular tissue in different places (e.g. Goodpasture’s disease which may affect the basement membrane in both the lung and the kidney). The treatment of autoimmune diseases is typically with immunosuppression-medication which decreases the immune responseFor autoimmune diseases several papers has described the desired effect upon the cytokine profile following treatment. Below is the abstract and reference for one such

As described in one paper: The concept of therapeutic vaccination represents a novel strategy of active immunotherapy that can be applied to autoimmune disease. The principle is to design molecules which can trigger an immune response, targeting a cytokine that is pathogenic and over-expressed in a given disease. The mostly available vaccines are an application of vaccination using either the self-protein coupled to a carrier (type I A), or a modified form of the protein engineered to include neo-epitopes (type I B). These approaches have been developed in models of several autoimmune diseases, mainly in TNFα-dependent diseases such as rheumatoid arthritis and Crohn’s disease, but also in systemic lupus erythematosus, multiple sclerosis and myasthenia gravis. Clinical trials are in progress in rheumatoid arthritis, Crohn’s disease and diabetes. The benefit/risk ratio of anti-cytokine vaccination is currently under study to further develop the vaccination strategies. (Swiss Med Wkly. 2010 Nov 1;140:w13108. doi: 10.4414/smw.2010.13108. Anti-cytokine vaccination in autoimmune diseases. Delavallee L, Duvallet E, Semerano L, Assier E, Boissier MC. University Paris 13, PRES Paris Cité Sorbonne, Bobigny, France. laure.delavallee@upmc.fr).

Asthma

Asthma is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic).

It is thought to be caused by a combination of genetic and environmental factors. Treatment of acute symptoms is usually with an inhaled short-acting beta-2 agonist (such as salbutamol). Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by inhaling corticosteroids. Leukotriene antagonists are less effective than corticosteroids and thus less preferred. Its diagnosis is usually made based on the pattern of symptoms and/or response to therapy over time. The prevalence of asthma has increased significantly since the 1970 s. As of 2010, 300 million people were affected worldwide. In 2009 asthma caused 250,000 deaths globally.

For Asthma several papers has described the desired effect upon the cytokine profile following treatment. Below is the abstract and reference for two such papers:

The first paper notes that Asthma is a common, disabling inflammatory respiratory disease that has increased in frequency and severity in developed nations. We review studies of murine allergic airway disease (MAAD) and human asthma that evaluate the importance of Th2 cytokines, Th2 response-promoting cytokines, IL-17, and proinflammatory and anti-inflammatory cytokines in MAAD and human asthma. We discuss murine studies that directly stimulate airways with specific cytokines or delete, inactivate, neutralize, or block specific cytokines or their receptors, as well as controversial issues including the roles of IL-5, IL-17, and IL-13Ralpha2 in MAAD and IL-4Ralpha expression by specific cell types. Studies of human asthmatic cytokine gene and protein expression, linkage of cytokine polymorphisms to asthma, cytokine responses to allergen stimulation, and clinical responses to cytokine antagonists are discussed as well. Results of these analyses establish the importance of specific cytokines in MAAD and human asthma and have therapeutic implications. (J Immunol. 2010 Feb 15;184(4):1663-74. Importance of cytokines in murine allergic airway disease and human asthma. Finkelman FD, Hogan SP, Hershey GK, Rothenberg ME, Wills-Karp M. Department of Medicine, Cincinnati Veterans Affairs Medical Center, Cincinnati, OH 45220, USA. finkelman@pol.net).

The second paper notes that a growing list of cytokines that contribute to the pathogenesis of asthma has been identified. The purpose of this review is to explore the specific cytokines involved in asthma, including their functions, cell sources, and clinical evidence that they participate in asthma. Existing data from clinical trials of cytokine antagonists in asthmatic patients are then reviewed to determine the efficacy and safety of these compounds. RECENT FINDINGS: Cytokine antagonists that have been investigated recently in asthma include monoclonal antibodies directed against interleukin (IL)-5, tumor necrosis factor-alpha (TNF-α), and IL-4/IL-13. Ongoing and future clinical investigations of inhibitors directed at IL-9, IL-13, IL-17, and thymic stromal lymphopoietin may offer potential new agents that will play roles in the treatment of severe asthma. (Curr Opin Pulm Med. 2011 Jan;17(1):29-33. Cytokine inhibition in severe asthma: current knowledge and future directions. Corren J. Research Division, Allergy Medical Clinic, Los Angeles, California 90025, USA. jcorren@ucla.edu).

Arthritis

Arthritis (from Greek arthro-, joint + -itis, inflammation; plural: arthritides) is a form of joint disorder that involves inflammation of one or more joints.

There are over 100 different forms of arthritis. The most common form, osteoarthritis (degenerative joint disease), is a result of trauma to the joint, infection of the joint, or age. Other arthritis forms are rheumatoid arthritis, psoriatic arthritis, and related autoimmune diseases. Septic arthritis is caused by joint infection.

The major complaint by individuals who have arthritis is joint pain. Pain is often a constant and may be localized to the joint affected. The pain from arthritis is due to inflammation that occurs around the joint, damage to the joint from disease, daily wear and tear of joint, muscle strains caused by forceful movements against stiff, painful joints and fatigue.

For Arthritis several papers has described the desired effect upon the cytokine profile following treatment. Below is the abstract and reference for two such papers:

The first paper sets out to analyze circulating cytokines and regulatory T cells (Treg) in patients with rheumatoid arthritis (RA) of different durations, and their association with functional interleukin 10 (IL-10) and tumor necrosis factor-a (TNF-α) genotypes in patients treated with corticosteroids. METHODS: Serum levels of IL-6, IL-10, IL-17, IL-18, TNF-α, and transforming growth factor-β (TGF-β) were quantified in 196 patients and 61 healthy controls. Percentage of CD4+CD25high cells was determined by flow cytometry and Foxp3 expression by real-time reverse-transcription polymerase chain reaction. Data were related to clinical measurements and presence of the genotype -1082GG IL-10/-308GG TNF-α, previously associated with good response to corticosteroids. RESULTS: Levels of TNF-α, IL-6, and IL-18 were significantly higher in patients compared to controls, while TGF-R and IL-10 were lower. Serum samples of patients at disease onset (n = 32) had increased IL-6 and decreased TGF-β, but there were no differences in other cytokines. These patients also presented a higher percentage of CD4+CD25high cells than those with established disease, although no significant differences were detected in Foxp3. Patients under corticosteroid treatment who were carriers of the good responder genotype had higher levels of TGF-R, Foxp3, and Treg compared to patients with other genotypes, while relatively lower levels of TNF-α and IL-17 were observed. CONCLUSION: Patients at onset of RA present fewer alterations in cytokine levels and Treg than those with longer disease duration, supporting the role of disease progression in subsequent changes. The antiinflammatory balance observed in high IL-10/low TNF-α patients treated with prednisone supports the use of these genetic polymorphisms as predictors of response to corticosteroid therapy. (J Rheumatol. 2010 Dec; 37(12):2502-10. Epub 2010 Oct 15. Cytokines and regulatory T cells in rheumatoid arthritis and their relationship with response to corticosteroids. de Paz B, Alperi-López M, Ballina-Garcia FJ, Prado C, Gutiérrez C, Suárez A. Department of Functional Biology, Immunology Area, University of Oviedo, Oviedo, Spain.)

The second paper provides studies of the inflammatory process in the inflamed synovium from rheumatoid arthritis patients have shown an intricate network of molecules involved in its initiation, perpetuation and regulation trial balances the pro- and anti-inflammatory process. This system is self-regulating though the action of anti-inflammatory and pro-inflammatory cytokines cytokine receptor antagonists and naturally occurring antibodies cytokines. Inflammatory synovitis in rheumatoid arthritis (and possibly in other inflammatory arthritidies) appears to be the result of an imbalance in the cytokine network with either an excess production of pro-inflammatory cytokines or from inadequacy of the natural anti-inflammatory mechanisms. Using this knowledge the newer therapeutic approaches to RA and other inflammatory arthritides are being aimed at correcting this imbalance. Monoclonal antibodies to INF-alpha (humanised form of this is called infliximab), soluble TNF-alpha receptors (etanercept) are already in clinical use and adalimumab (humanised TNF-alpha antibody). IL-1Ra is undergoing clinical trials. Other promising therapeutic agents that could regulate the cytokine network are in various stages of laboratory and clinical evaluation. These studies promise to yield therapeutic targets that could dramatically change the way inflammatory diseases would he treated in the future. The now established efficacy of infliximab and etanercept in inflammatory arthritides could be considered just a glimpse of the exciting scenario of the future. (J Assoc Physicians India. 2006 Jun; 54 Suppl:15-8. Cytokine network and its manipulation in rheumatoid arthritis. Malaviya AM. A7R Clinic for Arthritis and Rheumatism, Consultant Rheumatologist Indian Spinal Centre, New Delhi - 110 07.)

Inflammatory Bowel Disease

In medicine, inflammatory bowel disease (IBD) is a group of inflammatory conditions of the colon and small intestine. The major types of IBD are Crohn’s disease and ulcerative colitis.

For Inflammatory bowel disease several papers has described the desired effect upon the cytokine profile following treatment. Below is the abstract and reference for two such papers:

The first paper discloses that Cytokines play a central role in the modulation of the intestinal immune system. They are produced by lymphocytes (especially T cells of the Th1 and Th2 phenotypes), monocytes, intestinal macrophages, granulocytes, epithelial cells, endothelial cells, and fibroblasts. They have proinflammatory functions [interleukin-1 (IL-1), tumor necrosis factor (TNF), IL-6, IL-8, IL-12] or antiinflammatory functions [interleukin-1 receptor antagonist (IL-1ra), IL-4, IL-10, IL-11, transforming growth factor beta (TGF beta)]. Mucosal and systemic concentrations of many pro- and antiinflammatory cytokines are elevated in inflammatory bowel disease (IBD). An imbalance between proinflammatory and antiinflammatory cytokines was found for the IL-⅟IL-1ra ratio in the inflamed mucosa of patients with Crohn’s disease, ulcerative colitis, diverticulitis, and infectious colitis. Furthermore, the inhibition of proinflammatory cytokines and the upplementations with antiinflammatory cytokines reduced inflammation in animal models, such as the dextran sulfate colitis (DSS) model, the trinitrobenzene sulfonic acid (TNBS) model, or the genetically engineered model of IL-10 knockout mice. Based on these findings a rationale for cytokine treatment was defined. The first clinical trials using neutralizing monoclonal antibodies against TNF alpha (cA2) or the antiinflammatory cytokine IL-10 have shown promising results. However, many questions must be answered before cytokines can be considered standard therapy for IBD. (World J Surg. 1998 Apr;22(4):382-9. Cytokines in inflammatory bowel disease. Rogler G, Andus T. Department of Internal Medicine I, University of Regensburg, Germany.)

The second paper discloses that Ulcerative colitis and Crohn’s disease are chronic inflammatory disorders of the GI tract. Although the disorders can usually be distinguished on clinical and pathological criteria, there are similarities in natural history and response to therapy. The purpose of this article is to examine the inflammatory infiltrate in both disorders and the cytokine profiles in intestinal mucosa and peripheral blood. For both disorders, the predominant cells in inflamed mucosa are neutrophils and lymphocytes positive for CD4. There are also increases in the number of B cells, macrophages, dendritic cells, plasma cells, eosinophils and perhaps mast cells. Cytokine levels and cytokine expression are also similar for both disorders, with increases in TNF-α and IFN-y consistent with a Th1 response. As inflammation occurs in a microbial environment, one possibility is that the nature of the inflammatory response is largely independent of initiating factors. One concept that might be useful is that of initiating cells and cytokines and effector cells and cytokines. Persuasive evidence exists for a defect in phagocytic cells in Crohn’s disease, perhaps with the expansion of a subset of activated macrophages. There are also possible links to natural killer cells and changes in the regulation of IL-8 and perhaps IL-22. For ulcerative colitis, the cellular events are less clear, but natural killer T cells may be important as initiating cells, and there is some evidence for upregulation of cytokines involved in Th2 responses, including IL-4 and IL-13. For both disorders, proinflammatory cytokines include TNF-α, IL-12, IL-23, and perhaps IL-17 and IFN-y. Research challenges include the identification, activation and function of subsets of inflammatory cells, as well as new ways to terminate the inflammatory response. (Expert Rev Gastroenterol Hepatol. 2011 Dec;5(6):703-16. Cells, cytokines and inflammatory bowel disease: a clinical perspective. Roberts-Thomson IC, Fon J, Uylaki W, Cummins AG, Barry S. Department of Gastroenterology and Hepatology, The Queen Elizabeth Hospital,Adelaide, South Australia, Australia, ian.roberts-thomson@health.sa.gov.au).

Food Allergy

A food allergy is an adverse immune response to a food protein. They are distinct from other adverse responses to food, such as food intolerance, pharmacological reactions, and toxin-mediated reactions.

The protein in the food is the most common allergic component. These kinds of allergies occur when the body’s immune system mistakenly identifies a protein as harmful. Some proteins or fragments of proteins are resistant to digestion and those that are not broken down in the digestive process are tagged by the Immunoglobulin E (IgE). These tags fool the immune system into thinking that the protein is harmful. The immune system, thinking the organism (the individual) is under attack, triggers an allergic reaction. These reactions can range from mild to severe. Allergic responses include dermatitis, gastrointestinal and respiratory distress, including such life-threatening anaphylactic responses as biphasic anaphylaxis and vasodilation; these require immediate emergency intervention. Individuals with protein allergies commonly avoid contact with the problematic protein. Some medications may prevent, minimize or treat protein allergy reactions.

Treatment consists of either immunotherapy (desensitisation) or avoidance, in which the allergic person avoids all forms of contact with the food to which they are allergic. Areas of research include anti-IgE antibody (omalizumab, or Xolair) and specific oral tolerance induction (SOTI), which have shown some promise for treatment of certain food allergies. People diagnosed with a food allergy may carry an injectable form of epinephrine such as an EpiPen, or wear some form of medical alert jewelry, or develop an emergency action plan, in accordance with their doctor.

The scope of the problem, particularly for young people, is a significant public health issue.

Food allergy is thought to develop more easily in patients with the atopic syndrome, a very common combination of diseases: allergic rhinitis and conjunctivitis, eczema and asthma. The syndrome has a strong inherited component; a family history of allergic diseases can be indicative of the atopic syndrome.

Food Intolerance

Food intolerance or non-allergic food hypersensitivity is a term used widely for varied physiological responses associated with a particular food, or compound found in a range of foods.

Food intolerance is negative reaction, often delayed, to a food, beverage, food additive, or compound found in foods that produces symptoms in one or more body organs and systems, but it is not a true food allergy. A true food allergy requires the presence of Immunoglobin E (IgE) antibodies against the food, and a food intolerance does not.

Food intolerances can be classified according to their mechanism. Intolerance can result from the absence of specific chemicals or enzymes needed to digest a food substance, as in hereditary fructose intolerance. It may be a result of an abnormality in the body’s ability to absorb nutrients, as occurs in fructose malabsorption. Food intolerance reactions can occur to naturally occurring chemicals in foods, as in salicylate sensitivity. Drugs sourced from plants, such as aspirin, can also cause these kinds of reactions. Finally, it may be the result of non-IgE-mediated immune responses.

Non-allergic food hypersensitivity is the medical name for food intolerance, loosely referred to as food hypersensitivity, or previously as pseudo-allergic reactions. Non-allergic food hypersensitivity should not be confused with true food allergies

Food intolerance reactions can include pharmacologic, metabolic, and gastro-intestinal responses to foods or food compounds. Food intolerance does not include either psychological responses or foodborne illness.

Nanoparticle

In nanotechnology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. Particles are further classified according to size: in terms of diameter, coarse particles cover a range between 10,000 and 2,500 nanometers. Fine particles are sized between 2,500 and 100 nanometers. Ultrafine particles, or nanoparticles are sized between 100 and 1 nanometers. The reason for this double name of the same object is that, during the 1970-80's, when the first thorough fundamental studies were running with “nanoparticles” in the USA (by Granqvist and Buhrman) and Japan, (within an ERATO Project) they were called “ultrafine particles” (UFP). However, during the 1990s before the National Nanotechnology Initiative was launched in the USA, the new name, “nanoparticle” had become fashionable (see, for example the same senior author’s paper 20 years later addressing the same issue, lognormal distribution of sizes). Nanoparticles may or may not exhibit size-related properties that differ significantly from those observed in fine particles or bulk materials. Although the size of most molecules would fit into the above outline, individual molecules are usually not referred to as nanoparticles.

Nanoparticle research is currently an area of intense scientific interest due to a wide variety of potential applications in biomedical, optical and electronic fields.

For coating and production of nanoparticles several papers has described the desired effect upon the cytokine profile following injection into the patient. Below is the abstract and reference two such papers:

The first paper discloses novel adjuvants and antigen-delivery systems with immunomodulatory properties that shift the allergenic Th2 response towards a Th1 or regulatory T cell response are desired for allergen-specific immunotherapy. This study demonstrates that 200-nm sized biodegradable poly(gamma-glutamic acid) (gamma-PGA) nanoparticles (NPs) are activators of human monocyte-derived dendritic cells (MoDCs). Gamma-PGA NPs are efficiently internalized by immature MoDCs and strongly stimulate production of chemokines and inflammatory cytokines as well as upregulation of co-stimulatory molecules and immunomodulatory mediators involved in efficient T cell priming. Furthermore, MoDCs from allergic subjects stimulated in vitro with a mixture of gamma-PGA NPs and extract of grass pollen allergen Phleum pratense (Phl p) augment allergen-specific IL-10 production and proliferation of autologous CD4(+) memory T cells. Thus, gamma-PGA NPs are promising as sophisticated adjuvants and allergen-delivery systems in allergen-specific immunotherapy. (Vaccine. 2010 Jul 12;28(31):5075-85. Epub 2010 May 15. Immunomodulatory nanoparticles as adjuvants and allergen-delivery system to human dendritic cells: Implications for specific immunotherapy. Broos S, Lundberg K, Akagi T, Kadowaki K, Akashi M, Greiff L, Borrebaeck CA, Lindstedt M. Department of Immunotechnology, Lund University, Lund, Sweden.)

The second paper has the objective to examine what kinds of cytokines are related to lung disorder by well-dispersed nanoparticles. The mass median diameter of nickel oxide in distilled water was 26 nm. Rats intratracheally received 0.2 mg of nickel oxide suspended in distilled water, and were sacrificed from three days to six months. The concentrations of 21 cytokines including inflammation, fibrosis and allergy-related ones were measured in the lung. Infiltration of alveolar macrophages was observed persistently in the nickel oxide-exposed group. Expression of macrophage inflammatory protein-1alpha showed a continued increase in lung tissue and broncho-alveolar lavage fluid (BALF) while interleukin-1alpha (IL-lalpha), IL-1beta in lung tissue and monocyte chemotactic protein-1 in BALF showed transient increases. Taken together, it was suggested that nano-agglomerates of nickel oxide nanoparticles have a persistent inflammatory effect, and the transient increase in cytokine expression and persistent increases in CC chemokine were involved in the persistent pulmonary inflammation. (Nanotoxicology. 2010 Jun;4(2):161-76. Expression of inflammation-related cytokines following intratracheal instillation of nickel oxide nanoparticles. Morimoto Y, Ogami A, Todoroki M, Yamamoto M, Murakami M, Hirohashi M, Oyabu T, Myojo T, Nishi K, Kadoya C, Yamasaki S, Nagatomo H, Fujita K, Endoh S, Uchida K, Yamamoto K, Kobayashi N, Nakanishi J, Tanaka I. Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan, yasuom@med.uoeh-u.ac.jp).

Biomaterials

A biomaterial is any matter, surface, or construct that interacts with biological systems. The development of biomaterials, as a science, is about fifty years old. The study of biomaterials is called biomaterials science. It has experienced steady and strong growth over its history, with many companies investing large amounts of money into the development of new products. Biomaterials science encompasses elements of medicine, biology, chemistry, tissue engineering and materials science.

Biomaterials can be derived either from nature or synthesized in the laboratory using a variety of chemical approaches utilizing metallic components or ceramics. They are often used and/or adapted for a medical application, and thus comprises whole or part of a living structure or biomedical device which performs, augments, or replaces a natural function. Such functions may be benign, like being used for a heart valve, or may be bioactive with a more interactive functionality such as hydroxyapatite coated hip implants. Biomaterials are also used every day in dental applications, surgery, and drug delivery. E.G. A construct with impregnated pharmaceutical products can be placed into the body, which permits the prolonged release of a drug over an extended period of time. A biomaterial may also be an autograft, allograft or xenograft used as a transplant material.

Materials scientists are currently paying more and more attention to the process inorganic crystallization within a largely organic matrix of naturally occurring compounds. This process typically generally occurs at ambient temperature and pressure. Interestingly, the vital organisms through which these crystalline minerals form are capable of consistently producing intricately complex structures. Understanding the processes in which living organisms are capable of regulating the growth of crystalline minerals such as silica could lead to significant scientific advances and novel synthesis techniques for nanoscale composite materials—or nanocomposites.

Biomaterials are used in: Joint replacements, Bone plates, Bone cement, Artificial ligaments and tendons, Dental implants for tooth fixation, Blood vessel prostheses, Heart valves, Skin repair devices (artificial tissue), Cochlear replacements, Contact lenses, Breast implants

Biomaterials must be compatible with the body, and there are often issues of biocompatibility which must be resolved before a product can be placed on the market and used in a clinical setting. Because of this, biomaterials are usually subjected to the same requirements as those undergone by new drug therapies.

For coating and production of biomaterials several papers has described the desired effect upon the cytokine profile following injection into the patient. Below is the abstract and reference three such papers:

The first paper discloses that some nickel (Ni) allergic patients develop complications following Ni-containing arthroplasty. In the peri-implant tissue of such patients, we had observed lymphocyte dominated inflammation together with IFN-gamma and IL-17 expression. OBJECTIVES: To determine whether Ni stimulation of peripheral blood mononuclear cells (PBMCs) of such patients would lead to a different cytokine pattern as compared to Ni-allergic patients with symptom-free arthroplasty. PATIENTS AND METHODS: Based on history and patch testing in 15 Ni-allergic patients (five without implant, five with symptom-free arthroplasty, five with complicated arthroplasty) and five non-allergic individuals, lymphocyte transformation test (LTT) was performed using PBMC. In parallel in vitro cytokine response to Ni was assessed by real-time reverse anscriptase-polymerase chain reaction (RT-PCR).

RESULTS: All 15 Ni-allergic individuals showed enhanced LTT reactivity to Ni (mean SI = 8.42 +/- 1.8) compared to the non-allergic control group. Predominant IFN-gamma expression to Ni was found both in the five allergic patients without arthroplasty and also in the five allergic, symptom-free arthroplasty patients. In contrast, in the five Ni-allergic patients with arthroplasty-linked complications a predominant, significant IL-17 expression to Ni was seen but not in patients with symptom-free arthroplasty. CONCLUSIONS: The predominant IL-17 type response to Ni may characterize a subgroup of Ni-allergic patients prone to develop lymphocytic peri-implant hyper-reactivity. (Contact Dermatitis. 2010 Jul;63(l):15-22. Nickel (Ni) allergic patients with complications to Ni containing joint replacement show preferential IL-17 type reactivity to Ni. Summer B, Paul C, Mazoochian F, Rau C, Thomsen M, Banke I, Gollwitzer H, Dietrich KA, Mayer-Wagner S, Ruzicka T, Thomas P. Klinik und Poliklinik für Dermatologie und Allergologie, Ludwig-Maximilians-Universität, München, Germany. Burkhard.Summer@med.uni-muenchen.de).

The second paper says that cytokines, chemokines, and growth factors were analyzed periodically over eight weeks from the wound exudate fluid surrounding biomaterials implanted subcutaneously within stainless steel mesh cages. TNF-alpha, MCP-1, MIP-1alpha, IL-2, IL-6, IL-1beta, VEGF, IL-4, and IL-10 were measured from exudate samples collected from cages containing specimens of polyethylene (PE), polyurethane (PU), or organotin polyvinyl chloride (ot-PVC). Empty cages served as negative controls, and lipopolysaccharide (LPS) served as a positive control. Cytokine, chemokine, and growth factor concentrations decreased from the time of implantation to eight weeks post-implantation, and there was an overall increase in cytokine, chemokine, and growth factor production for material-containing cages compared to empty cages. However, cytokine production was only modestly affected by the different surface chemistries of the three implanted polymeric materials. (Biomaterials. 2009 Jan;30(2):160-8. Epub 2008 Oct 11. In vivo cytokine-associated responses to biomaterials. Schutte RJ, Xie L, Klitzman B, Reichert WM. Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA.)

The third paper sets out to further elucidate the foreign body reaction, investigation of cytokines at biomaterial implant sites was carried out using a multiplex immunoassay and ELISA. Macrophage activation cytokines (IL-1beta, IL-6, and TNFalpha), cytokines important for macrophage fusion (IL-4 and IL-13), antiinflammatory cytokines (IL-10 and TGFbeta), chemokines (GRO/KC, MCP-1), and the T-cell activation cytokine IL-2 were quantified at biomaterial implant sites. Empty cages (controls) or cages containing synthetic biomedical polymer (Elasthane 80A (PEU), silicone rubber (SR), or polyethylene terephthalate (PET)) were implanted subcutaneously in Sprague-Dawley rats for 4, 7, or 14 days, and cytokines in exudate supernatants and macrophage surface adhesion and fusion were quantified. The presence of a polymer implant did not affect the levels of IL-1beta, TGFbeta, and MCP-1 in comparison to the control group. IL-2 was not virtually detected in any of the samples. Although the levels of IL-4, IL-13, IL-10, and GRO/KC were affected by polymer implantation, but not dependent on a specific polymer, IL-6 and TNFalpha were significantly greater in those animals implanted with PEU and SR, materials that do not promote fusion. The results indicate that differential material-dependent cytokine profiles are produced by surface adherent macrophagesand foreign body giant cells in vivo. (J Biomed Mater Res A. 2009 Apr;89(1):152-9. Quantitative in vivo cytokine analysis at synthetic biomaterial implant sites. Rodriguez A, Meyerson H, Anderson JM. Department of Pathology, Case Western Reserve University, Cleveland, Ohio 44106, USA.)

SUMMARY OF THE INVENTION

The present invention relates to uses of immune suppressive domains. In particular, the present invention concerns a use of an immune suppressive domain (ISD) for immune suppression and for reduction of inflammation. Further, the invention concerns a class of multifunctional drugs for treatment of inflammatory diseases or as coatings for biomaterial or nanoparticles. Additionally, the invention relates to compositions comprising immunosuppressive polypeptides that are derived from enveloped RNA viruses. The present invention also relates to methods for producing said compositions, as well as the usage of said compositions for treatment of inflammatory disorders or protection of nanoparticles, biomaterials and/or medical devices such as cathedra, implants, plaster, etc to prevent or subdue undesired immunological adverse effects from the host.

According to an aspect, the present invention relates to compositions of immunosuppressive peptides derived from enveloped RNA viruses.

In another aspect the present invention relates to compositions of immunosuppressive peptides derived from the fusion peptide of enveloped RNA viruses.

In third aspect the present invention relates to compositions of immunosuppressive peptides derived from the fusion peptide of influenza virus.

In fourth aspect the present invention relates to a composition comprising one or more of said immunosuppressive peptides, or part thereof.

In a fifth aspect the present invention relates to a pharmaceutical composition comprising one or more immunosuppressive peptides and further comprising a pharmaceutical acceptable carrier or salt.

In a sixth aspect the present invention relates to usage of compositions of said immunosuppressive peptides for treatment of inflammatory disorders.

In a seventh aspect the present invention relates to usage of compositions of said immunosuppressive peptides for usage for protection of nanoparticles or biomaterials from undesirable immunological adverse reactions.

In a further aspect the present invention relates to a method of producing a composition comprising immunosuppressive peptides, said method comprising the steps of:

-   a) providing one or more immunosuppressive peptides -   b) optionally cross-linking the immunosuppressive peptides provided     in step a), -   c) optionally providing a carrier -   d) providing a substance -   e) mixing the peptides of step a) or optionally step b) or step c)     with the substance of step d. -   f) obtaining the composition of the present invention.

According to an additional aspect, the invention concerns an immune suppressive domain for use as a medicament.

According to another aspect, the invention concerns a use of an immune suppressive domain for the manufacture of a medicament for immune suppression.

According to an additional aspect, the invention concerns a method for the preparation of a pharmaceutical composition comprising the steps of:

-   a. Providing one or more immunosuppressive peptides selected from     Seqid 1 to Seqid 287, and optionally cross-linking said one or more     immunosuppressive peptides; -   b. Optionally providing a carrier; -   c. Providing a substance; -   d. Mixing the provided one or more peptides with any carrier of     optional step b. and the substance of step d. to obtain the     pharmaceutical composition.

According to an additional aspect, the invention concerns a pharmaceutical composition obtainable according to the invention.

According to another aspect, the invention concerns a pharmaceutical composition comprising an immune suppressive domain as an active substance.

According to an additional aspect, the invention concerns a use of the composition according to the invention, for treatment of a disease by IV injection.

According to an additional aspect, the invention concerns the use of the composition according to the invention, to increase the half-life of nanoparticles or biomaterials in vivo in a patient.

According to an additional aspect, the invention concerns a vaccine comprising an immune suppressive domain selected among Seqid 275 to 287 against PRRS.

According to another aspect, the invention concerns a vaccine against PRRS comprising a mutated immunosuppressive domain selected among Seqid 275 to Seqid 287, subject to the proviso that the immunosuppressive properties of said domain have been abrogated.

According to another aspect, the invention concerns a peptide having the sequence of an Immune Suppressive Domain according to the invention.

According to an aspect, the invention concerns the use of a peptide according to the invention, said use being selected among any of the uses of Immune Suppressive Domains of the invention.

According to an aspect, the invention concerns a method of treatment of an indication selected among the indications of the present application and the viral infections of Table 1 comprising administration of an effective amount of an entity selected among the Immune Suppressive Domains of the invention, the compositions of the invention, and the peptides of the invention.

BRIEF DESCRIPTION OF DRAWINGS

INF ISD peptide is identical to INF-F#2 and are dimeric form of the peptide with the sequence [Seq id 287] GLFGAIAGFIENGWEGCGGEKEKEK

FIG. 1 shows the effect of the INF ISD peptide on TNF-alpha mRNA levels.

FIG. 2 shows the effect of peptide incubation on secreted TNF-alpha levels in the supernatant of THP-1 cells.

FIG. 3 shows the effect of the INF ISD peptide on IL-1 beta mRNA levels in THP-1 cells.

FIG. 4 shows the effect of the INF ISD peptide on IL-6 mRNA levels in THP-1 cells.

FIG. 5 shows the effect of the INF ISD peptide on IL-8 mRNA levels in THP-1 cells.

FIG. 6 shows the effect of the INF ISD peptide on IL-10 mRNA levels in THP-1 cells.

FIG. 7 shows the effect of the INF ISD peptide on NF-kappa B mRNA levels in THP-1 cells.

FIG. 8 shows the effect of the INF ISD peptide on the house holding gene RPL13a mRNA levels in THP-1 cells.

FIG. 9 shows that in the presence of INF F#2, cells treated with LPS release significantly lower amounts of cytokines.

BM DCs were treated with LPS for 16 hours. Cell supernatants were then collected and analyzed for type I IFN using bioassay. Before LPS treatment cells were either pretreated with INF F#2, with the deletion mutant DI6 or not pretreated with any peptide.

FIG. 10 shows inflammation-related enzyme and transcription factor gene expression kinetics of THP-1 monocytes stimulated with 1 µg/ml LPS. Gene expression was expressed as relative gene expression towards RPL13a-expression and non-stimulated cells at time zero (ΔΔCt). Data shown are means + standard deviation from two independent biological replications.

FIG. 11 shows effects of INF ISD peptide on expression of NF-kappaB mRNA in LPS-stimulated THP-1 cells. THP-1 cells were incubated with either medium alone, 30 µM, 60 µM INF ISD peptide or 30 µM, 60 µM control peptide, and stimulated with 1 µg/ml LPS. Data shown are the medians ± standard deviation from two independent biological replications.

FIG. 12 shows effects of INF ISD peptide on expression of SP-1 mRNA in LPS-stimulated THP-1 cells. THP-1 cells were incubated with either medium alone, 30 µM, 60 µM INF ISD peptide or 30 µM, 60 µM control peptide, and stimulated with 1 µg/ml LPS. Data shown are the medians ± standard deviation from two independent biological replications.

FIG. 13 shows effects of INF ISD peptide on protein secretion of IL-8 in LPS-stimulated THP-1 cells. THP-1 cells were incubated with either medium alone, 30 µM or 60 µM INF ISD peptide or 30 µM, 60 µM control peptide, and stimulated with 1 µg/ml LPS. Data shown are the median ± standard deviation from three independent experiments performed in duplicates.

FIG. 14 shows effects of INF ISD peptide on protein secretion of IL-10 in LPS-stimulated THP-1 cells. THP-1 cells were incubated with either medium alone, 30 µM or 60 µM INF ISD peptide or 30 µM, 60 µM control peptide, and stimulated with 1 µg/ml LPS. Data shown are the median ± standard deviation from three independent experiments performed in duplicates.

FIG. 15 shows effect of different stimulus on the secretion of IFN-gamma in PBMCs. PBMCs were incubated either with 1 µg/ml or 50 ng/ml PMA and 1 µg/ml ionomycin or 10 ng/ml SEB for indicated time periods. Data shown are the medians ± standard deviation from three independent technical replicates.

FIG. 16 shows expression kinetics of IFN gamma expression in response to PMA/ionomycin treatment. Gene expression was expressed as relative gene expression towards RPL13a expression and non-stimulated cells at time zero (ΔΔ Ct). Data shown are the medians ± standard deviation from three independent technical replicates.

FIG. 17 shows effect of INF ISD on secretion of protein of IFN-gamma in PMA/ionomycin stimulated PBMCs. PBMCs were incubated with either medium alone, 30 µM or 60 µM Flu ISU or 30 µM or 60 µM control peptide, and stimulated with 50 ng/ml PMA and 1 µg/ml ionomycin. Data shown are the medians ± standard deviation from three independent experiments performed in duplicates.

FIG. 18 shows effects of SARS ([Seq id 285] AEVQIDRLITGRLQSLQTYVCGGEKEKEK) or Filo ISD ([Seq id 286] GAAIGLAWIPYFGPAAECGGEKEKEK) on expression of TNF-alpha mRNA in LPS-stimulated THP-1 cells. THP-1 cells were incubated with either medium alone, 30 µM, 60 µM SARS or Filo ISD peptide or 30 µM, 60 µM control peptide, and stimulated with 1 µg/ml LPS. Data shown are the medians ± standard deviation from two independent biological replications.

FIG. 19 shows effects of SARS or Filo ISD on expression of IL-1 j3 mRNA in LPS-stimulated THP-1 cells. THP-1 cells were incubated with either medium alone, 30 µM, 60 µM SARS or Filo ISD peptide or 30 µM, 60 µM control peptide, and stimulated with 1 µg/ml LPS. Data shown are the medians ± standard deviation from two independent biological replications.

FIG. 20 shows effects of SARS or Filo ISD on expression of IL-1 β mRNA in LPS-stimulated THP-1 cells. THP-1 cells were incubated with either medium alone, 30 µM, 60 µM SARS or Filo ISD peptide or 30 µM, 60 µM control peptide, and stimulated with 1 µg/ml LPS. Data shown are the medians ± standard deviation from two independent biological replications.

FIG. 21 shows interactions between INF ISD peptide (pFlu) and STING depends on distinct STING domains. To investigate further the interaction between STING and INF ISD peptide (pFlu) the C-terminal domian of STING was expressed with a HA-tag in HEK293 cells. STING was either in a wt form or with deletions. Lysates from tansfected cells were used for pulldown using biotinylated INF ISD peptide (pFlu) and streptavidin coated beads. The bead eluate was then immunoblotted using antibodies against HA-tag. As seen in the figure wt STING and the deletion mutant DN5 (162-N) was readily pulled down using INF ISD peptide (pFLu) whereas the deletion mutants DN6 (172-N) was not. These data indicate that amino acids 162-172 are necessary for interactions between pFlu and STING.

DETAILED DISCLOSURE

According to an embodiment, the present invention concerns compositions of one or more immunosuppressive peptides. Immunosuppressive polypeptides are polypeptides that are capable of suppressing an immune response in animals, including human beings and other animal such as domestic or agricultural (cats, dogs, cows, sheep, horses, pigs, etc.) or test species such as mouse, rats, rabbits and the like.

In one embodiment of the present invention the immunosuppressive polypeptides are capable of at least 5% inhibition of T-lymphocyte proliferation, at least 10%, at least 20%, such as at least 30%, at least 40%, at least 50%, such as at least 60%, such as at least 70% inhibition of T-lymphocyte proliferation. In particular embodiments the immunosuppressive peptides of the present invention are capable of at least 75% inhibition of T-lymphocyte proliferation, at least 80%, such as at least 85%, at least 90%, such as at least 95%, at least 97%, such as at least 99%, at least 100% inhibition of T-lymphocyte proliferation.

According to another embodiment of the present invention the immunosuppressive polypeptides are capable of suppressing the immune response in an animal suffering from a general skin inflammation according to the TPA model, an irritant contact dermatitis model, as described herein below. According to the present invention, the immunosuppressive polypeptides of the present invention are capable of reducing the ear thickening in mice challenged with phorbol 12-myristate 13-acetate (TPA), the ear thickening being reduced with at least 5%, such as least 10%, at least, 15%, at least 20%, such as at least 25%, at least 30%, at least 35%, such as at least 40%, at least 45%, such as at least 50%, at least 55%, such as at least 60%, at least 65%, such as at least 70%, at least 75%, such as at least 80%, at least 85% reduction of ear thickening following TPA challenge.

Hence, the present invention comprise one or more immunosuppressive peptides, such as 2, for example 3, such as 4, such as 5, for example 6, such as 7, such as 8, for example 9, such as 10, such as 11, for example 12, such as 13, such as 14, for example 15, such as 16, such as 17, for example 18, such as 19, such as 20 immunosuppressive peptides.

The present invention may comprise the same immunosuppressive polypeptide, or the compositions may comprise different immunosuppressive polypeptides. In one embodiment of the present invention, the immunosuppressive polypeptides are monomeric. In another embodiment of the present invention the immunosuppressive polypeptides are dimeric. In another embodiment of the present invention the immunosuppressive polypeptides are trimeric. In yet another embodiment of the present invention the immunosuppressive polypeptides are multimeric. Thus, according to the present invention the immunosuppressive polypeptides may be monomeric, homologous dimeric, heterologous dimeric, homologous trimeric, heterologous trimeric, homologous multimeric and/or heterologous multimeric. In a particular preferred embodiment the immunosuppressive polypeptides of the present invention are homologous dimeric.

Additionally, the present invention may comprise combinations of di-, tri-and/or multimeric immunosuppressive peptides. In one embodiment the present invention comprises homologues dimeric peptides in combination with other homologous dimeric peptides. In another embodiment the invention comprises homologous dimeric peptides in combination with heterologous dimeric peptides. The following combinations of peptides are also within the scope of this invention: homologous dimeric peptides with homologous trimeric, homologuos dimeric with heterologous trimeric, heterologous dimeric with homologous trimeric, heterologous dimeric with heterologous trimeric, homologous dimeric with homologous multimeric, heterologous dimeric with homologous multimeric, homologous dimeric with heterologous multimeric, heterologous dimeric with heterologous multimeric, homologous trimeric with homologous multimeric, homologous trimeric with heterologous multimeric, heterologous trimeric with homologous multimeric and heterologous trimeric with heterologous multimeric immusuppressive peptides.

In certain embodiments of the present invention the immunosuppressive polypeptides are homologous dimers, such as homologous dimers formed by two of the peptides SEQ ID NO: 4, and/or two of the peptides with SEQ ID NO: 119, and/or two of the peptides with SEQ ID NO: 120, and/or two of the peptides with SEQ ID NO: 121, and/or two of the peptides with SEQ ID NO: 122, and/or two of the peptides with SEQ ID NO: 123, and/or two of the peptides with SEQ ID NO: 124, and/or two of the peptides with SEQ ID NO: 125, and/or two of the peptides with SEQ ID NO: 126. In one embodiment the monomeric peptides are cross-linked into a dimer by cross-linking the peptides N-terminal to N-terminal or C-terminal to C-terminal. I a preferred embodiment the peptides are cross-linked via a disulfide bond wherein the peptides are cross-linked C-terminal to C-terminal.

In other certain embodiments of the present invention the immunosuppressive polypeptides are heterologous dimers, such as heterologus dimers formed by two peptides in the following combinations: SEQ ID NO: 4 with SEQ ID NO: 119; and/or SEQ ID NO: 4 with SEQ ID NO: 120, and/or SEQ ID NO: 4 with SEQ ID NO: 121, and/or SEQ ID NO: 4 with SEQ ID NO:122, and/or SEQ ID NO: 4 with SEQ ID NO: 123, and/or SEQ ID NO: 4 with SEQ ID NO: 124, and/or SEQ ID NO: 4 with SEQ ID NO: 125, and/or SEQ ID NO: 4 with SEQ ID NO: 126 and/or with a sequence selected from SEQ ID NO: 119 to 126 with a sequence selected from SEQ ID NO: 119 to 126.

In one embodiment the monomeric peptides are cross-linked into a dimer by cross-linking the peptides N-terminal to N-terminal or C-terminal to C-terminal. I a preferred embodiment the peptides are cross-linked via a disulfide bond wherein the peptides are cross-linked C-terminal to C-terminal.

The immunosuppressive polypeptides of the present invention may be of different length. However, it is appreciated that the active component of the immunosuppressive peptides have a maximum length of about 100 amino acids, such as about 90 amino acids, for example about 80 amino acids, such as about 70 amino acids, such as about 60 amino acids, for example about 50 amino acids, such as 40 amino acids, for example about 35 amino acids.

In particular embodiments the length of the active component of the immunosuppressive peptides is 35 amino acids, or 34, or 33, or 32, or 31, or 30, or 29, or 28, or 27, or 26, or 25, or 24, or 23, or 22, or 21, or 20, or 19, or 18, or 17, or 16, or 15, or 14, or 13, or 12, or11,or10,or9, or 8, or7, or 6, or 5, or 4, or 3 amino acids long. Thus, the immunosuppressive peptides of the present invention have lengths and amino acid sequences corresponding to any of SEQ ID NO:1 to SEQ ID NO:287 as listed herein below. A special feature of the immunosuppressive peptides of the present invention is that they may contain an extra cysteine (Cys or C) residue, either in the N-terminal or C-terminal of the polypeptide. In a particular embodiment the cysteine residue is located in the C-terminal of the peptides. The presence and function of this cysteine residue is primarily so as to crosslink two or more polypeptides together, preferable via disulfide bonds, as described herein below. However, the function of the extra cysteine may be other than that of cross-linking. Thus, the immunosuppressive peptides of the present invention may have amino acid sequences corresponding to any of SEQ ID:1 to SEQ ID:287, and wherein the immunosuppressive peptides further contain an extra cystein (Cys og C) residue at either the N-terminal or C-terminal of the peptide.

The immusuppressive peptides of the present invention may be a combination of the peptides corresponding to SEQ ID NO:1 to SEQ ID NO:287. Thus also comprise one part of one of the peptides

Moreover, the present invention also encompasses polypeptides, wherein one or more amino acid residues are modified, wherein said one or more modification(s) are preferably selected from the group consisting of in vivo or in vitro chemical derivatization, such as but not limited to acetylation or carboxylation, glycosylation, such as glycosylation resulting from exposing the polypeptide to enzymes which affect glycosylation, for example mammalian glycosylating or deglycosylating enzymes, phosphorylation, such as modification of amino acid residues which results in phosphorylated amino acid residues, for example phosphotyrosine, phosphoserine and phosphothreonine. The polypeptide according to the invention can comprise one or more amino acids independently selected from the group consisting of naturally occurring L-amino acids, naturally occurring D-amino acids as well as non-naturally occurring, synthetic amino acids. One or more amino acid residues of the polypeptide of the present invention are modified so as to preferably improve the resistance to proteolytic degradation and stability or to optimize solubility properties or to render the polypeptide more suitable as a therapeutic agent. The invention also relates to polypeptides of the invention where blocking groups are introduced in order to protect and/or stabilize the N-and/or C-termini of the polypeptide from undesirable degradation. Such blocking groups may be selected from the group comprising but not limited to branched or non-branched alkyl groups and acyl groups, such as formyl and acetyl groups, as well substituted forms thereof, such as acetamidomethyl. The invention also relates to the following: The polypeptides according to present invention, wherein the one or more blocking groups are selected from N-terminal blocking groups comprising desamino analogs of amino acids, which are either coupled to the N-terminus of the peptide or used in place of the N-terminal amino acid residue. The polypeptide according to present invention, but not limited to wherein the one or more blocking groups are selected from C-terminal blocking groups wherein the carboxyl group of the C-terminus is either incorporated or not, such as esters, ketones, and amides, as well as descarboxylated amino acid analogues. The polypeptide according to present invention, wherein the one or more blocking groups are selected from C-terminal blocking groups comprising ester or ketoneforming alkyl groups, such as lower (C1 to C6) alkyl groups, for example methyl, ethyl and propyl, and amide-forming amino groups, such as primary amines (-NH2), and mono-and dialkylamino groups, such as methylamino, ethylamino, dimethylamino, diethylamino, methylethylamino, and the like. The polypeptide according to present invention, wherein free amino group(s) at the N-terminal end and free carboxyl group(s) at the termini can be removed altogether from the polypeptide to yield desamino and descarboxylated forms thereof without significantly affecting the biological activity of the polypeptide. The increased properties may be achieved for example by chemical protection, i.e. by reacting the proteins and peptides of the present invention with protecting chemical groups, or by the incorporation of non-naturally occurring amino acids, e.g. D-amino acids, with the result of prolonging the half-life of the proteins and peptides of the present invention.

Cross-linking

The immunosuppressive polypeptides of the present invention are suitably used alone, but is preferably coupled to another material or cross-linked to itself to increase its biological or immunological activity, particularly if the polypeptide is relatively short, or to achieve certain properties on the material being coupled. In a specific aspect of this invention, any or all of the immunosuppressive polypeptides may be cross-linked to increase its activity, to facilitate its delivery in vivo, and/or to render the polypeptides resistant towards hydrolysis and/or proteolysis. The cross-linked polypeptide may be formed in situ by allowing the monomers to oxidize (e.g., for disulfide bonds) or it may be synthesized by using a specific cross-linking agent.

The cross-linking between the polypeptide chains may occur at either end of the polypeptide, or in the middle of the polypeptide, depending on which end is most appropriate. For example, if the N-terminal or the C-terminal of the polypeptides comprises cysteine residues, these are preferably cross-linked by linking it to another cysteine residue on another homologous or heterologous polypeptide of the present invention, thereby forming a disulfide bond. Preferably the immunosuppressive polypeptides of the present invention are cross-linked by disulfide bonds at the C-terminal.

Polypeptide chains may be polymerized by cross-linking agents, either directly or indirectly through multifunctional polymers. Two polypeptides may be cross linked at their C-or N-termini using a multifunctional cross-linking agent. The agent is used to cross-link the terminal amino-or carboxyl groups. Generally, both terminal carboxyl groups or both terminal amino groups are crosslinked to one another, although by selection of the appropriate crosslinking agent the alpha amino group of one polypeptide is crosslinked to the terminal carboxyl group of the other polypeptide. Preferably, the polypeptides are substituted at their C-termini with cysteine. Under conditions well known in the art a disulfide bond can be formed between the terminal cysteines, thereby cross-linking the polypeptide chains.

Additional cross-linking sites on the polypeptides, include epsilon amino groups found on lysine residues, as well as amino, imino, carboxyl, sulfhydryl and hydroxyl groups located on the side chains of internal residues of the peptides. Cross-linking through externally added cross-linking agents is obtained, e.g., using any of a number of reagents familiar to those skilled in the art, for example, via carbodiimide treatment of the polypeptides. Other non-limiting examples of suitable multifunctional cross-linking agents include 1,1-bis(diazoacetyl)-2-phenylethane; glutaraldehyde; Nhydroxysuccinimide esters such as esters with 4-azidosalicylic acid; homobifunctional imidoesters including disuccinimidyl esters such as 3,3′-dithiobis (succinimidylpropionate) and dimethyl adipimidate dihydrochloride, bifunctional maleimides such as bis-N-maleimidol,8-octane; disuccinimidyl suberate, and bis(sulfosuccinimidyl) suberate.

Heterobifunctional cross-linking reagents include those with an N-hydroxysuccinimide moiety at one end and a maleimido group on the other end; succinimidyl 4-(Nmaleimidomethyl)cyclohexane-1-carboxylate (SMCC), sulfo-SMCC, mmaleimidobenzoyl-N-hydroxysuccinimide ester (MBS); sulfo-MBS; suceinimidyl 4-(pmaleimidophenyl)butyrate (SMPB); sulfo-SMPB; N-succinimidyl(4-iodoacetyl)aminobenzoate (SlAB); sulfo-SIAB; 1-ethyl-3-(3dimethylaminopropyl)carbodiimide hydrochloride (EDC); and Nhydroxysulfosuccinimide. Cross-linking agents such as methyl-3-[(p-azido-phenyl)dithio) propioimidate yield photoactivatable intermediates which are capable of forming cross-links in the presence of light. If necessary, sensitive residues such as the side chains of the diargininyl group are protected during cross-linking and the protecting groups removed thereafter.

Polymers capable of multiple cross-linking serve as indirect cross-linking agents. For example, cyanogen bromide activated carbohydrates may be used for cross-linking the peptides herein. Cross-linking to amino groups of the peptides is accomplished by known chemistries based upon eyanuric chloride, carbonyl diimidazole, aldehyde reactive groups (PEG alkoxide plus diethyl acetal of bromoacetaldehyde; PEG plus DMSO and acetic anhydride, or PEG chloride plus the phenoxide of 4-hydroxybenzaldehyde). Also useful are succinimidyl active esters, activated dithiocarbonate PEG, and 2,4,5-trichlorophenylchloroformate-or pnitrophenylchloroformate-activated PEG. Carboxyl groups are derivatized by coupling PEG-amine using carbodiimide.

Administration Forms, Formulations and Dosage Regimes

Pharmaceutical compositions containing a composition of the present invention may be prepared by conventional techniques, e.g. as described in Remington: The Science and Practice of Pharmacy 1995, edited by E. W. Martin, Mack Publishing Company, 19th edition, Easton, Pa. The compositions may appear in conventional forms, for example suspensions or topical applications such as a solution, gel, cream, lotion, shake lotion, ointment, foam, shampoo, mask or similar forms. But also patches, gazes and bandages and the like may be used for topical application of the composition of the present invention.

Whilst it is possible for the compositions or salts of the present invention to be administered as the raw chemical, it is preferred to present them in the form of a pharmaceutical formulation. Accordingly, the present invention further provides a pharmaceutical formulation, for medicinal application, which comprises a composition of the present invention or a pharmaceutically acceptable salt thereof, as herein defined, and a pharmaceutically acceptable carrier therefore.

The pharmaceutical compositions and dosage forms may comprise the compositions of the invention or its pharmaceutically acceptable salt or a crystal form thereof as the active component. The pharmaceutically acceptable carriers can be either solid, semisolid or liquid. Emulsions may be prepared in solutions in aqueous propylene glycol solutions or may contain emulsifying agents such as lecithin, sorbitan monooleate, or acacia. Aqueous solutions can be prepared by suspending or mixing the active component in water and adding suitable colorants, flavors, stabilizing and thickening agents. Aqueous suspensions can be prepared by dispersing the finely divided active component in water with viscous material, such as natural or synthetic gums, resins, methylcellulose, sodium carboxymethylcellulose, and other well known suspending agents. Solid form preparations include suspensions and emulsions, and may contain, in addition to the active component, colorants, stabilizers, buffers, artificial and natural dispersants, thickeners, and the like.

The compositions of the present invention may take such forms as suspensions, solutions, or emulsions in oily or aqueous vehicles, for example solutions in aqueous polyethylene glycol. Examples of oily or nonaqueous carriers, diluents, solvents or vehicles include propylene glycol, polyethylene glycol, vegetable oils (e.g., olive oil), and injectable organic esters (e.g., ethyl oleate), and may contain formulatory agents such as preserving, wetting, emulsifying or suspending, stabilizing or dispersing agents. Alternatively, the active ingredient may be in powder form, obtained by aseptic isolation of sterile solid or by lyophilisation from solution for constitution before use with a suitable vehicle, e.g., sterile, pyrogen-free water.

Oils useful in formulations include petroleum, animal, vegetable, or synthetic oils. Specific examples of oils useful in such formulations include peanut, soybean, sesame, cottonseed, corn, olive, petrolatum, and mineral. Suitable fatty acids for use in parenteral formulations include oleic acid, stearic acid, and isostearic acid. Ethyl oleate and isopropyl myristate are examples of suitable fatty acid esters.

Suitable soaps for use in formulations include fatty alkali metal, ammonium, and triethanolamine salts, and suitable detergents include (a) cationic detergents such as, for example, dimethyl dialkyl ammonium halides, and alkyl pyridinium halides; (b) anionic detergents such as, for example, alkyl, aryl, and olefin sulfonates, alkyl, olefin, ether, and monoglyceride sulfates, and sulfosuccinates, (c) nonionic detergents such as, for example, fatty amine oxides, fatty acid alkanolamides, and polyoxyethylenepolypropylene copolymers, (d) amphoteric detergents such as, for example, alkyl.beta.-aminopropionates, and 2-alkyl-imidazoline quaternary ammonium salts, and (e) mixtures thereof.

The formulations typically will contain from about 0.5 to about 25% by weight of the active ingredient in solution. Preservatives and buffers may be used. In order to minimize or eliminate irritation at the site of injection, such compositions may contain one or more nonionic surfactants having a hydrophile-lipophile balance (HLB) of from about 12 to about 17. The quantity of surfactant in such formulations will typically range from about 5 to about 15% by weight. Suitable surfactants include polyethylene sorbitan fatty acid esters, such as sorbitan monooleate and the high molecular weight adducts of ethylene oxide with a hydrophobic base, formed by the condensation of propylene oxide with propylene glycol. The parenteral formulations can be presented in unit-dose or multi-dose sealed containers, such as ampoules and vials, and can be stored in a freeze-dried (lyophilized) condition requiring only the addition of the sterile liquid excipient, for example, water, immediately prior to use.

Pharmaceutically Acceptable Salts

Pharmaceutically acceptable salts of the instant compositions, where they can be prepared, are also intended to be covered by this invention. These salts will be ones which are acceptable in their application to a pharmaceutical use. By that it is meant that the salt will retain the biological activity of the parent composition and the salt will not have untoward or deleterious effects in its application and use in treating diseases.

Pharmaceutically acceptable salts are prepared in a standard manner. If the parent composition is a base it is treated with an excess of an organic or inorganic acid in a suitable solvent. If the parent composition is an acid, it is treated with an inorganic or organic base in a suitable solvent.

The compositions of the invention may be administered in the form of an alkali metal or earth alkali metal salt thereof, concurrently, simultaneously, or together with a pharmaceutically acceptable carrier or diluent, especially and preferably in the form of a pharmaceutical composition thereof, whether by oral, rectal, or parenteral (including subcutaneous) route, in an effective amount.

Examples of pharmaceutically acceptable acid addition salts for use in the present inventive pharmaceutical composition include those derived from mineral acids, such as hydrochloric, hydrobromic, phosphoric, metaphosphoric, nitric and sulfuric acids, and organic acids, such as tartaric, acetic, citric, malic, lactic, fumaric, benzoic, glycolic, gluconic, succinic, p-toluenesulphonic acids, and arylsulphonic, for example.

Uses of Compositions Containing Said Immunosuppressive Peptides

The present invention comprises in one embodiment a pharmaceutical composition and/or compositions for the treatment and/or prevention and/or amelioration of inflammatory disorders. Below is a non-limiting list of the inflammatory disorders that the compositions of the present invention can be used to treat, prevent or ameliorate. The compositions of the present invention may be directed towards the treatment, prevention or amelioration of other inflammatory disorders than the ones listed herein below. The list below may thus be regarded as the inflammatory disorders that in preferred embodiments are target conditions for the compositions of the present invention.

We anticipate that the immunosuppressive peptides disclosed in this application will be advantageous for treatment of many other types of inflammatory disorders where a reduction of anti-inflammatory responses in the patient is desirable. This is especially valid for diseases/applications where a reduction in the level of cytokines like TNF-α, IL-17, IL-6. Especially for diseases/applications like Arthritis, Asthma, Autoimmune diseases, Sepsis, Inflammatory bowel disease, Coating of biomaterials and nanoparticles where a reduction of one or several of these cytokines has been reported as desirable.

Below a number of such inflammatory disorders where a decreased immunogenic response is required is described in more detail. The description of relevant diseases should only be considered as examples as many more diseases could be treated these immunosuppressive peptides. Also included is the usage of these immunosuppressive peptides for coating of nanoparticles and biomaterials as a decreased immunogenic response is also desired in these cases to prolong the half-life of these materials, increase biocompatibility or decrease foreign body reactions.

Sepsis

Sepsis is a potentially deadly medical condition characterized by a whole-body inflammatory state (called a systemic inflammatory response syndrome or SIRS) that is triggered by an infection. The body may develop this inflammatory response by the immune system to microbes in the blood, urine, lungs, skin, or other tissues. A lay term for sepsis is blood poisoning, also used to describe septicaemia. Severe sepsis is the systemic inflammatory response, infection and the presence of organ dysfunction.

Severe sepsis is usually treated in the intensive care unit with intravenous fluids and antibiotics. If fluid replacement isn’t sufficient to maintain blood pressure, specific vasopressor medications can be used. Mechanical ventilation and dialysis may be needed to support the function of the lungs and kidneys, respectively. To guide therapy, a central venous catheter and an arterial catheter may be placed; measurement of other hemodynamic variables (such as cardiac output, mixed venous oxygen saturation, or stroke volume variation) may also be used. Sepsis patients require preventive measures for deep vein thrombosis, stress ulcers and pressure ulcers, unless other conditions prevent this. Some patients might benefit from tight control of blood sugar levels with insulin (targeting stress hyperglycemia). The use of corticosteroids (low dose or otherwise) is controversial. Activated drotrecogin alfa (recombinant protein C) has not been found to be helpful, and has recently been withdrawn from sale.

In addition to symptoms related to the provoking infection, sepsis is characterized by presence of acute inflammation present throughout the entire body, and is, therefore, frequently associated with fever and elevated white blood cell count (leukocytosis) or low white blood cell count (leukopenia) and lower-than-average temperature, and vomiting. The modern concept of sepsis is that the host’s immune response to the infection causes most of the symptoms of sepsis, resulting in hemodynamic consequences and damage to organs. This host response has been termed systemic inflammatory response syndrome (SIRS) and is characterized by an elevated heart rate (above 90 beats per minute), high respiratory rate (above 20 breaths per minute or a partial pressure of carbon dioxide in the blood of less than 32), abnormal white blood cell count (above 12,000, lower than 4,000, or greater than 10% band forms) and elevated or lowered body temperature, i.e. under 36° C. (96.8° F.) or over 38° C. (100.4° F.). Sepsis is differentiated from SIRS by the presence of a known or suspected pathogen. For example SIRS and a positive blood culture for a pathogen indicates the presence of sepsis. However, in many cases of sepsis no specific pathogen is identified.

This immunological response causes widespread activation of acute-phase proteins, affecting the complement system and the coagulation pathways, which then cause damage to the vasculature as well as to the organs. Various neuroendocrine counter-regulatory systems are then activated as well, often compounding the problem. Even with immediate and aggressive treatment, this may progress to multiple organ dysfunction syndrome and eventually death.

The term “amino acid” and “amino acid sequence” refer to an oligopeptide, peptide, polypeptide, or protein sequence, or a fragment of any of these, and to naturally occurring or synthetic molecules. Where “amino acid sequence” is recited to refer to a sequence of a naturally occurring protein molecule, “amino acid sequence” and like terms are not meant to limit the amino acid sequence to the complete native amino acid sequence associated with the recited protein molecule. Thus, the term “amino acid” comprises any synthetic or naturally occurring amino carboxylic acid, including any amino acid occurring in peptides and polypeptides including proteins and enzymes synthesized in vivo thus including modifications of the amino acids. The term amino acid is herein used synonymously with the term “amino acid residue” which is meant to encompass amino acids as stated which have been reacted with at least one other species, such as 2, for example 3, such as more than 3 other species. The generic term amino acid comprises both natural and non-natural amino acids any of which may be in the “D” or “L” isomeric form.

One-letter symbol Three-letter symbol Amino acid (trivial name) A Ala alanine B Asx aspartic acid or asparagine C Cys cysteine D Asp aspartic acid E Glu glutamic acid F Phe phenylalanine G Gly glycine H His histidine I Ile isoleucine K Lys lysine L Leu leucine M Met methionine N Asn asparagine P Pro proline Q Gln glutamine R Arg arginine S Ser serine T Thr threonine U* Sec selenocysteine V Val valine W Trp tryptophan X Xaa unknown or other amino acid, i.e. X can be any of the conventional amino acids. Y Tyr Tyrosine Z Glx glutamic acid or glutamine (or substances such as 4-carboxyglutamic acid and 5-oxoproline that yield glutamic acid on acid hydrolysis of peptides)

The term “polypeptide” refers to a peptide having at least two, and preferably more than two amino acids. “Monomeric polypeptide” refers to a polypeptide that is a monomer as opposed to a dimer, trimer or polymer in the sense that the monomeric polypeptide is not crosslinked or otherwise bonded to another polypeptide chain. The term “dimer” thus refers to a moiety wherein two monomeric polypeptides are crosslinked to each other. In the same way, a trimeric polypetide refers to a moiety wherein three monomeric polypeptides are crosslinked to each other, while the term “polymer” or “multimer” refers to a moiety wherein at least two polypeptides, and preferably more than three polypeptides are crosslinked to each other.

The expression “cross-linker” or “cross-linking moiety” refers to a linking moiety conferred by an external cross-linking agent used to crosslink one polypeptide with one or more polypeptides as described further in detail herein below.

The term “homology” refers to sequence similarity or, interchangeably, sequence identity, between two or more polynucleotide sequences or two or more polypeptide sequences.

The phrases “percent identity” and “% identity,” as applied to polypeptide sequences, refer to the percentage of residue matches between at least two polypeptide sequences aligned using a standardized algorithm. Methods of polypeptide sequence alignment are well-known. Some alignment methods take into account conservative amino acid substitutions. Such conservative substitutions, explained in more detail above, generally preserve the charge and hydrophobicity at the site of substitution, thus preserving the structure (and therefore function) of the polypeptide.

“Percent identity” may be measured over the length of an entire defined polypeptide sequence, for example, as defined by a particular SEQ ID number, or may be measured over a shorter length, for example, over the length of a fragment taken from a larger, defined polypeptide sequence, for instance, a fragment of at least 6, at least 8, at least 10, at least 15, at least 20, at least 30, at least 40, at least 50, at least 70 or at least 150 contiguous residues. Such lengths are exemplary only, and it is understood that any fragment length supported by the sequences shown herein, in the tables, figures or Sequence Listing, may be used to describe a length over which percentage identity may be measured.

The term “carrier” refers to a compound that is conjugated to the polypeptide(s) either to increase the number of polypeptides, for increasing activity or immunosuppressive effect of the polypeptide(s), to confer stability to the molecules, to increase the biological activity of the peptides, or to increase its serum half-life. The “carrier” may be a protein carrier or a non-protein carrier. Non-limiting examples of non-protein carriers include liposomes, micelles, polymeric nanoparticles and diaminoethane. The liposome may comprise glycosaminoglycan hyaluronan (HA) and/or PEG. In one embodiment, the carrier is an immunoliposome. Other carriers include protamines,or polysaccharides e.g. aminodextran or chitosan. Non-limiting examples of protein carriers include, keyhole limpet hemocyanin, serum proteins such as transferrin, bovine serum albumin, human serum albumin, whale myoglobin, ovalbumn, immunoglobulins, lysozyme, carbonic anhydrase, or hormones, such as insulin. In other embodiments of the present invention, the carrier may be a pharmaceutical acceptable carrier as described herein below. The immunosuppressive peptides of the present invention may be coupled to the carrier by means of cross-linking as further described herein below.

The terms “protein modification”, “protein stability” and “peptide stability” is used to describe the state of the immunosuppressive proteins and peptides, in particular the state wherein said proteins and/or peptides are more resistant to degradation and/or have increased properties towards hydrolysis and/or proteolysis. In particular, proteolytic stability refers to the resistance toward the action of proteolytic enzymes, also known as proteases, i.e. enzymes that catalyzes the hydrolysis of the amide/peptide-bond of the protein or peptide. Moreover, the present invention also encompasses polypeptides, wherein one or more amino acid residues are modified, wherein said one or more modification(s) are preferably selected from the group consisting of in vivo or in vitro chemical derivatization, such as but not limited to acetylation or carboxylation, glycosylation, such as glycosylation resulting from exposing the polypeptide to enzymes which affect glycosylation, for example mammalian glycosylating or deglycosylating enzymes, phosphorylation, such as modification of amino acid residues which results in phosphorylated amino acid residues, for example phosphotyrosine, phosphoserine and phosphothreonine. The polypeptide according to the invention can comprise one or more amino acids independently selected from the group consisting of naturally occurring L-amino acids, naturally occurring D-amino acids as well as non-naturally occurring, synthetic amino acids. One or more amino acid residues of the polypeptide of the present invention are modified so as to preferably improve the resistance to proteolytic degradation and stability or to optimize solubility properties or to render the polypeptide more suitable as a therapeutic agent. The invention also relates to polypeptides of the invention where blocking groups are introduced in order to protect and/or stabilize the N-and/or C-termini of the polypeptide from undesirable degradation. Such blocking groups may be selected from the group comprising but not limited to branched or non-branched alkyl groups and acyl groups, such as formyl and acetyl groups, as well substituted forms thereof, such as acetamidomethyl. The invention also relates to the following: The polypeptides according to present invention, wherein the one or more blocking groups are selected from N-terminal blocking groups comprising desamino analogs of amino acids, which are either coupled to the N-terminus of the peptide or used in place of the N-terminal amino acid residue. The polypeptide according to present invention, but not limited to wherein the one or more blocking groups are selected from C-terminal blocking groups wherein the carboxyl group of the C-terminus is either incorporated or not, such as esters, ketones, and amides, as well as descarboxylated amino acid analogues. The polypeptide according to present invention, wherein the one or more blocking groups are selected from C-terminal blocking groups comprising ester or ketoneforming alkyl groups, such as lower (C1 to C6) alkyl groups, for example methyl, ethyl and propyl, and amide-forming amino groups, such as primary amines (-NH2), and mono-and dialkylamino groups, such as methylamino, ethylamino, dimethylamino, diethylamino, methylethylamino, and the like. The polypeptide according to present invention, wherein free amino group(s) at the N-terminal end and free carboxyl group(s) at the termini can be removed altogether from the polypeptide to yield desamino and descarboxylated forms thereof without significantly affecting the biological activity of the polypeptide. The increased properties may be achieved for example by chemical protection, i.e. by reacting the proteins and peptides of the present invention with protecting chemical groups, or by the incorporation of non-naturally occurring amino acids, e.g. D-amino acids, with the result of prolonging the half-life of the proteins and peptides of the present invention.

The term “penetration promoting” or “penetration enhancing” as used herein refers to compounds that facilitate the delivery of the immunosuppressive peptides of the present invention to the target site of action. In particular the term refers to the transcutaneous delivery of the immunosuppressive peptides. Simple topical application of the present invention may not always yield an adequate result, as the outermost layer of the skin provides an outstanding barrier against the external environment. While single penetration enhancers can aid topical delivery, combinations of several penetration enhancers may most effective. The amount of penetration enhancer which may be used in the invention varies from about 1 to 100 percent although adequate enhancement of penetration is generally found to occur in the range of about 1 to about 10 percent by weight of the formulation to be delivered. Non-limiting examples of penetration enahancers are entities that falls within liposomes, transferosomes niosomes and ethosomes, but may also be any of the many hundred known chemical prentration enhancers, of which sulfoxides, azones, pyrrolidones, fatty acids, terpenes and terpenoids, oxazolidinones and urea are non-limiting examples.

The term “immuno-modulation” as used herein refers to the process of where an immune response is either suppressed, partly or completely, or triggered or induced or enhanced. Likewise, the term “growth-modulation” as used herein refers to the process of were the cell proliferation is either suppressed, partly or completely, or where cell proliferation is induced or enhanced or promoted.

The term “substance” as used anywhere herein comprises any form of substance suitable for comprising the immunosuppressive polypeptides of the present invention.

Non-limiting examples of such substances are creams, lotions, shake lostions, ointments, gels, balms, salves, oils, foams, shampoos, sprays, aerosoloes as well as transdermal patches and bandages.

The term “treatment”, as used anywhere herein comprises any type of therapy, which aims at terminating, preventing, ameliorating and/or reducing the susceptibility to a clinical condition as described herein. In a preferred embodiment, the term treatment relates to prophylactic treatment, i.e. a therapy to reduce the susceptibility of a clinical condition, a disorder or condition as defined herein.

Thus, “treatment,” “treating,” and the like, as used herein, refer to obtaining a desired pharmacologic and/or physiologic effect, covering any treatment of a pathological condition or disorder in a mammal, including a human. The effect may be prophylactic in terms of completely or partially preventing a disorder or symptom thereof and/or may be therapeutic in terms of a partial or complete cure for a disorder and/or adverse affect attributable to the disorder. That is, “treatment” includes (1) preventing the disorder from occurring or recurring in a subject, (2) inhibiting the disorder, such as arresting its development, (3) stopping or terminating the disorder or at least symptoms associated therewith, so that the host no longer suffers from the disorder or its symptoms, such as causing regression of the disorder or its symptoms, for example, by restoring or repairing a lost, missing or defective function, or stimulating an inefficient process, or (4) relieving, alleviating, or ameliorating the disorder, or symptoms associated therewith, where ameliorating is used in a broad sense to refer to at least a reduction in the magnitude of a parameter, such as inflammation, pain, and/or immune deficiency.

The term “animal” as used herein may be defined to include humans, domestic or agricultural (cats, dogs, cows, sheep, horses, pigs, etc.) or test species such as mouse, rats, rabbits and the like. Thus the anamals may also be of bovine, equine, porcine, human, ovine, caprine or cervidae origin.

According to an embodiment, the present invention concerns an immune suppressive domain for use as a medicament.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said domain is the fusion peptide of an envelope protein.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said domain is the fusion peptide of a virus.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said domain is the fusion peptide of an enveloped RNA virus.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said domain is from a virus.

The inventors have inter alia identified three new groups of enveloped RNA viruses with immunosuppressive domains in their fusion protein:

-   1: The inventors have identified immunosuppressive domains among     enveloped RNA viruses with type II fusion mechanism. Hitherto,     immunosuppressive domains have not been described for any enveloped     RNA viruses with a type II fusion mechanism. Immunosuppressive     domains have been identified by the inventors at two positions in     two different groups of viruses:     -   i. Co-localizing with the fusion peptide exemplified by the         identification of an common immunosuppressive domain in the         fusion peptide of Flavirius (Dengue virus, west Nile virus etc),         and     -   ii. In the hydrophobic alpha helix N-terminal of the         transmembrane domain in the fusion protein exemplified by the         finding of an immunosuppressive domain in said helixes of all         flaviridae e.g. Hepatitis C virus, Dengue, west nile etc. -   2: The inventors have identified immunosuppressive domains in the     fusion protein among enveloped RNA viruses with type I fusion     mechanism (excluding lentivirus, retrovirus and filovirus).     -   This position co-localizes with the fusion peptide of said         fusion protein as demonstrated by the identification of a common         immunosuppressive domain in the fusion peptide of all Influenza         A and B types. -   3: The inventors have identified potential immunosuppressive domains     located at various positions of type I enveloped RNA viruses     (excluding lentivirus, retrovirus and filovirus) as well as in     enveloped RNA viruses featuring a fusion protein with neither a type     I nor a type II fusion structure.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said domain is from an influenza virus.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said domain is derived from an enveloped RNA virus.

The expression “derived from a virus” means that the domain is substantially identical to the immune suppressive domain of the virus, optionally with mutations, insertions or deletions.

According to an embodiment, the invention concerns the immune suppressive domain, subject to the proviso that said immune suppressive domain is different from immunosuppressive domains obeying the conditions of:

-   i) being from a virus selected among the group consisting of     gammaretrovirus, HIV and filovirus; -   ii) being located in the linker between the two heptad repeat     structures just N-terminal of the transmembrane domain in the fusion     protein; and -   iii) including at least some of the first 22 amino acids located     N-terminal to the first cysteine residue of the two well conserved     cystein residues, located between 4 and 6 amino acid residues from     one another and further located just N-terminal of the transmembrane     spanning domain of the fusion protein.

The immunosuppressive domains of lentivirus, retroviruses and filoviruses show large structural similarity. Furthermore the immunosuppressive domain of these viruses are all located at the same position in the structure of the fusion protein, more precisely in the linker between the two heptad repeat structures just N-terminal of the transmembrane domain in the fusion protein. These heptad repeat regions constitute two alpha helices that play a critical role in the active mechanism of membrane fusion by these proteins. The immune suppressive domains can be located in relation to two well conserved cystein residues that are found in these structures. These cystein residues are between 4 and 6 amino acid residues from one another and in many cases are believed to form disulfide bridges that stabilize the fusion proteins. The immune suppressive domains in all three cases include at least some of the first 22 amino acids that are located N-terminal to the first cysteine residue.

According to an embodiment, the invention concerns the immune suppressive domain, subject to the proviso, that said immune suppressive domain is different from immunosuppressive domains obeying the conditions of:

-   i) being from a virus selected among the group consisting of     gammaretrovirus, HIV and filovirus; and -   ii) being located in the linker between the two heptad repeat     structures just N-terminal of the transmembrane domain in the fusion     protein.

The in this context relevant immunosuppressive domains are all located at a very well-defined structure within their fusion proteins, at the bend in the heptad repeat just N-terminale of the transmembrane structure in the fusion protein.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said immune suppressive domain is different from immunosuppressive domains from a virus selected among the group consisting of gammaretrovirus, HIV and filovirus.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the domain is selected among the sequences of Table 1 or sequences seqid 1 to seqid 287.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the domain is obtainable from the sequences of Table 1 or the sequences seqid 1 to seqid 287, by at least one mutation, deletion or insertion.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the total number of mutations, deletions or insertions is selected among 1, 2, 3 and 4.

The term “mutation” is used with a number about this number of point mutation(s), i.e. 3 mutations mean 3 point mutations. The term “deletion” is used with a number about the deletion of this number of amino acid(s), i.e. 2 deletions means the deletion of 2 amino acids. The term “insertion” is used with a number about insertion of this number of amino acid(s), i.e. 1 insertion means the insertion of 1 amino acid.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the total number of mutations, deletions or insertions is more than 4.

According to an embodiment, the invention concerns the immune suppressive domain, whereby the obtained immune suppressive domain have abrogated immunosuppressive properties for use in a vaccine against Porcine Reproductive and Respiratory Syndrom (PRRS).

According to an embodiment, the invention concerns the immune suppressive domain for use in surgery, prophylaxis, therapy, or a diagnostic method.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the domain is selected among the group consisting of segid 4 and seqid 119 to seqid 126.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the domain is homologous to seqid 4.

According to an embodiment, the invention concerns the immune suppressive domain, which is a monomeric peptide.

According to an embodiment, the invention concerns the immune suppressive domain, cross-linked to at least one additional immunosuppressive peptide.

According to an embodiment, the invention concerns the immune suppressive domain, connected to at least one additional immunosuppressive peptide to form a dimer.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said dimer is homologous and comprises at least two immunosuppressive peptides with SEQ ID NO. 4, which are cross-linked by a disulfide bond, N-terminal to N-terminal or C-terminal to C-terminal.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said dimer is homologous and comprises at least two immunosuppressive peptides selected from SEQ ID NO. 119 to seqid 126, which are cross-linked by a disulfide bond, N-terminal to N-terminal or C-terminal to C-terminal.

According to an embodiment, the invention concerns the immune suppressive domain, connected to at least one additional immunosuppressive peptide to form a heterologous dimer.

According to an embodiment, the invention concerns the immune suppressive domain, connected to at least two additional immunosuppressive peptides to form a multimer.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said immunosuppressive peptides comprises one or more modifications.

According to an embodiment, the invention concerns the immune suppressive domain, wherein said modifications are selected from the group consisting of chemical derivatizations, L-amino acid substitutions, D-amino acid substitutions, synthetic amino acid substitutions, deaminations and decarboxylations.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the peptides or proteins have increased resistance against proteolysis compared to peptides or proteins not comprising said at least one modification.

According to an embodiment, the invention concerns the immune suppressive domain or an immune suppressive peptide according to the invention, for use in diagnostics and/or treatment and/or prevention and/or amelioration of disease.

According to an embodiment, the invention concerns the immune suppressive domain, wherein the subject is a human or an animal.

According to an embodiment, the invention concerns the immune suppressive domain, for use on an organ.

It is envisaged that an ISD may be used for treating an organ, e.g. before transplantation.

According to an embodiment, the invention concerns the immune suppressive domain for immune suppression.

According to an embodiment, the invention concerns the immune suppressive domain for the preparation or treatment of transplantation patients.

According to an embodiment, the invention concerns the immune suppressive domain for a use comprising treatment and/or prevention and/or amelioration of an autoimmune or inflammatory disease.

According to an embodiment, the invention concerns the immune suppressive domain for a use comprising prophylaxis or treatment of a condition selected among Acute disseminated encephalomyelitis (ADEM), Addison’s disease, Agammaglobulinemia, Alopecia areata, Amyotrophic Lateral Sclerosis, Ankylosing Spondylitis, Antiphospholipid syndrome, Antisynthetase syndrome, Atopic allergy, Atopic dermatitis, Autoimmune aplastic anemia, Autoimmune cardiomyopathy, Autoimmune enteropathy, Autoimmune hemolytic anemia, Autoimmune hepatitis, Autoimmune inner ear disease, Autoimmune lymphoproliferative syndrome, Autoimmune peripheral neuropathy, Autoimmune pancreatitis, Autoimmune polyendocrine syndrome, Autoimmune progesterone dermatitis, Autoimmune thrombocytopenic purpura, Autoimmune urticaria, Autoimmune uveitis, Balo disease/Balo concentric sclerosis, Behçet’s disease, Berger’s disease, Bickerstaff’s encephalitis, Blau syndrome, Bullous pemphigoid, Cancer, Castleman’s disease, Celiac disease, Chagas disease, Chronic inflammatory demyelinating polyneuropathy, Chronic recurrent multifocal osteomyelitis, Chronic obstructive pulmonary disease, Churg-Strauss syndrome, Cicatricial pemphigoid, Cogan syndrome, Cold agglutinin disease, Complement component 2 deficiency, Contact dermatitis, Cranial arteritis, CREST syndrome, Crohn’s disease, Cushing’s Syndrome, Cutaneous leukocytoclastic angiitis, Dego’s disease, Dercum’s disease, Dermatitis herpetiformis, Dermatomyositis, Diabetes mellitus type 1, Diffuse cutaneous systemic sclerosis, Dressler’s syndrome, Drug-induced lupus, Discoid lupus erythematosus, Eczema, Endometriosis, Enthesitis-related arthritis, Eosinophilic fasciitis, Eosinophilic gastroenteritis, Epidermolysis bullosa acquisita, Erythema nodosum, Erythroblastosis fetalis, Essential mixed cryoglobulinemia, Evan’s syndrome, Fibrodysplasia ossificans progressiva, Fibrosing alveolitis, Gastritis, Gastrointestinal pemphigoid, Glomerulonephritis, Goodpasture’s syndrome, Graves’ disease, Guillain-Barre syndrome (GBS), Hashimoto’s encephalopathy, Hashimoto’s thyroiditis, Henoch-Schonlein purpura, Herpes gestationis, Hidradenitis suppurativa, Hughes-Stovin syndrome, Hypogammaglobulinemia, Idiopathic inflammatory demyelinating diseases, Idiopathic pulmonary fibrosis, Idiopathic thrombocytopenic purpura, IgA nephropathy, Inclusion body myositis, Chronic inflammatory demyelinating polyneuropathy, Interstitial cystitis, Juvenile idiopathic arthritis, Kawasaki’s disease, Lambert-Eaton myasthenic syndrome, Leukocytoclastic vasculitis, Lichen planus, Lichen sclerosus, Linear IgA disease (LAD), Lou Gehrig’s disease, Lupoid hepatitis, Lupus erythematosus, Majeed syndrome, Ménière’s disease, Microscopic polyangiitis, Miller-Fisher syndrome, Mixed connective tissue disease, Morphea, Mucha-Habermann disease, Multiple sclerosis, Myasthenia gravis, Myositis, Narcolepsy, Neuromyelitis optica, Neuromyotonia, Occular cicatricial pemphigoid, Opsoclonus myoclonus syndrome, Ord’s thyroiditis, Palindromic rheumatism, PANDAS (pediatric autoimmune neuropsychiatric disorders associated with streptococcus), Paraneoplastic cerebellar degeneration, Paroxysmal nocturnal hemoglobinuria (PNH), Parry Romberg syndrome, Parsonage-Turner syndrome, Pars planitis, Pemphigus vulgaris, Pernicious anaemia, Perivenous encephalomyelitis, POEMS syndrome, Polyarteritis nodosa, Polymyalgia rheumatica, Polymyositis, Primary biliary cirrhosis, Primary sclerosing cholangitis, Progressive inflammatory neuropathy, Psoriasis, Psoriatic arthritis, Pyoderma gangrenosum, Pure red cell aplasia, Rasmussen’s encephalitis, Raynaud phenomenon, Relapsing polychondritis, Reiter’s syndrome, Restless leg syndrome, Retroperitoneal fibrosis, Rheumatoid arthritis, Rheumatic fever, Sarcoidosis, Schizophrenia, Schmidt syndrome, Schnitzler syndrome, Scleritis, Scleroderma, Serum Sickness, Sjogren’s syndrome, Spondyloarthropathy, Still’s disease, Stiff person syndrome, Subacute bacterial endocarditis (SBE), Susac’s syndrome, Sweet’s syndrome, Sydenham chorea, Sympathetic ophthalmia, Systemic lupus erythematosis, Takayasu’s arteritis, Temporal arteritis, Thrombocytopenia, Tolosa-Hunt syndrome, Transverse myelitis, Ulcerative colitis, Undifferentiated connective tissue disease, Undifferentiated spondyloarthropathy, Urticarial vasculitis, Vasculitis, Vitiligo, and Wegener’s granulomatosis.

According to an embodiment, the invention concerns the immune suppressive domain for the treatment or prevention of acute or chronic inflammation.

According to an embodiment, the invention concerns the immune suppressive domain for the treatment or prevention of a disorder associated with inflammation.

According to an embodiment, the invention concerns the immune suppressive domain for the treatment or prevention of a disorder selected among Acne vulgaris, Allergy, Allergic rhinitis, Asthma, Atherosclerosis, Autoimmune disease, Celiac disease, Chronic prostatitis, Glomerulonephritis, Hypersensitivities, Inflammatory bowel diseases, Pelvic inflammatory disease, Reperfusion injury, Rheumatoid arthritis, Sarcoidosis, Transplant rejection, Vasculitis, interstitial cystitis, Cancer, Depression, Myopathies, and Leukocyte defects. These conditions are examples of diseases or conditions associated with inflammation.

According to an embodiment, the invention concerns the immune suppressive domain for a use comprising prophylaxis or treatment of sepsis.

According to an embodiment, the invention concerns the immune suppressive domain for a use comprising prophylaxis or treatment of asthma.

According to an embodiment, the invention concerns the immune suppressive domain for a use comprising prophylaxis or treatment of allergy.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for immune suppression.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for the preparation or treatment of transplantation patients.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of an autoimmune or inflammatory disease.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of a condition selected among Acute disseminated encephalomyelitis (ADEM), Addison’s disease, Agammaglobulinemia, Alopecia areata, Amyotrophic Lateral Sclerosis, Ankylosing Spondylitis, Antiphospholipid syndrome, Antisynthetase syndrome, Atopic allergy, Atopic dermatitis, Autoimmune aplastic anemia, Autoimmune cardiomyopathy, Autoimmune enteropathy, Autoimmune hemolytic anemia, Autoimmune hepatitis, Autoimmune inner ear disease, Autoimmune lymphoproliferative syndrome, Autoimmune peripheral neuropathy, Autoimmune pancreatitis, Autoimmune polyendocrine syndrome, Autoimmune progesterone dermatitis, Autoimmune thrombocytopenic purpura, Autoimmune urticaria, Autoimmune uveitis, Balo disease/Balo concentric sclerosis, Behçet’s disease, Berger’s disease, Bickerstaff’s encephalitis, Blau syndrome, Bullous pemphigoid, Cancer, Castleman’s disease, Celiac disease, Chagas disease, Chronic inflammatory demyelinating polyneuropathy, Chronic recurrent multifocal osteomyelitis, Chronic obstructive pulmonary disease, Churg-Strauss syndrome, Cicatricial pemphigoid, Cogan syndrome, Cold agglutinin disease, Complement component 2 deficiency, Contact dermatitis, Cranial arteritis, CREST syndrome, Crohn’s disease, Cushing’s Syndrome, Cutaneous leukocytoclastic angiitis, Dego’s disease, Dercum’s disease, Dermatitis herpetiformis, Dermatomyositis, Diabetes mellitus type 1, Diffuse cutaneous systemic sclerosis, Dressler’s syndrome, Drug-induced lupus, Discoid lupus erythematosus, Eczema, Endometriosis, Enthesitis-related arthritis, Eosinophilic fasciitis, Eosinophilic gastroenteritis, Epidermolysis bullosa acquisita, Erythema nodosum, Erythroblastosis fetalis, Essential mixed cryoglobulinemia, Evan’s syndrome, Fibrodysplasia ossificans progressiva, Fibrosing alveolitis, Gastritis, Gastrointestinal pemphigoid, Glomerulonephritis, Goodpasture’s syndrome, Graves’ disease, Guillain-Barre syndrome (GBS), Hashimoto’s encephalopathy, Hashimoto’s thyroiditis, Henoch-Schonlein purpura, Herpes gestationis, Hidradenitis suppurativa, Hughes-Stovin syndrome, Hypogammaglobulinemia, Idiopathic inflammatory demyelinating diseases, Idiopathic pulmonary fibrosis, Idiopathic thrombocytopenic purpura, IgA nephropathy, Inclusion body myositis, Chronic inflammatory demyelinating polyneuropathy, Interstitial cystitis, Juvenile idiopathic arthritis, Kawasaki’s disease, Lambert-Eaton myasthenic syndrome, Leukocytoclastic vasculitis, Lichen planus, Lichen sclerosus, Linear IgA disease (LAD), Lou Gehrig’s disease, Lupoid hepatitis, Lupus erythematosus, Majeed syndrome, Ménière’s disease, Microscopic polyangiitis, Miller-Fisher syndrome, Mixed connective tissue disease, Morphea, Mucha-Habermann disease, Multiple sclerosis, Myasthenia gravis, Myositis, Narcolepsy, Neuromyelitis optica, Neuromyotonia, Occular cicatricial pemphigoid, Opsoclonus myoclonus syndrome, Ord’s thyroiditis, Palindromic rheumatism, PANDAS (pediatric autoimmune neuropsychiatric disorders associated with streptococcus), Paraneoplastic cerebellar degeneration, Paroxysmal nocturnal hemoglobinuria (PNH), Parry Romberg syndrome, Parsonage-Turner syndrome, Pars planitis, Pemphigus vulgaris, Pernicious anaemia, Perivenous encephalomyelitis, POEMS syndrome, Polyarteritis nodosa, Polymyalgia rheumatica, Polymyositis, Primary biliary cirrhosis, Primary sclerosing cholangitis, Progressive inflammatory neuropathy, Psoriasis, Psoriatic arthritis, Pyoderma gangrenosum, Pure red cell aplasia, Rasmussen’s encephalitis, Raynaud phenomenon, Relapsing polychondritis, Reiter’s syndrome, Restless leg syndrome, Retroperitoneal fibrosis, Rheumatoid arthritis, Rheumatic fever, Sarcoidosis, Schizophrenia, Schmidt syndrome, Schnitzler syndrome, Scleritis, Scleroderma, Serum Sickness, Sjogren’s syndrome, Spondyloarthropathy, Still’s disease, Stiff person syndrome, Subacute bacterial endocarditis (SBE), Susac’s syndrome, Sweet’s syndrome, Sydenham chorea, Sympathetic ophthalmia, Systemic lupus erythematosis, Takayasu’s arteritis, Temporal arteritis, Thrombocytopenia, Tolosa-Hunt syndrome, Transverse myelitis, Ulcerative colitis, Undifferentiated connective tissue disease, Undifferentiated spondyloarthropathy, Urticarial vasculitis, Vasculitis, Vitiligo, and Wegener’s granulomatosis.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of a condition selected among acute or chronic inflammation.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of a condition associated with inflammation.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of a condition selected among Acne vulgaris, Allergy, Allergic rhinitis, Asthma, Atherosclerosis, Autoimmune disease, Celiac disease, Chronic prostatitis, Glomerulonephritis, Hypersensitivities, Inflammatory bowel diseases, Pelvic inflammatory disease, Reperfusion injury, Rheumatoid arthritis, Sarcoidosis, Transplant rejection, Vasculitis, interstitial cystitis, Cancer, Depression, Myopathies, and Leukocyte defects.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of Sepsis.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of asthma.

According to an embodiment, the invention concerns the use of an immune suppressive domain for the manufacture of a medicament for prophylaxis or treatment of allergy.

According to an embodiment, the invention concerns a method for the preparation of a pharmaceutical composition comprising the steps of:

-   a. Providing one or more immunosuppressive peptides selected from     Seqid 1 to Seqid 287, and optionally cross-linking said one or more     immunosuppressive peptides; -   b. Optionally providing a carrier; -   c. Providing a substance; -   d. Mixing the provided one or more peptides with any carrier of     optional step b. and the substance of step d. to obtain the     pharmaceutical composition.

According to an embodiment, the invention concerns the method, wherein said substance of step c. is selected from the group consisting of creams, lotions, shake lotions, ointments, gels, balms, salves, oils, foams, shampoos, sprays, aerosols, transdermal patches and bandages.

According to an embodiment, the invention concerns a pharmaceutical composition obtainable according to the invention.

According to an embodiment, the invention concerns a pharmaceutical composition comprising an immune suppressive domain as an active substance.

According to an embodiment, the invention concerns the pharmaceutical composition, wherein said immune suppressive domain is selected among the immune suppressive domains of the invention.

According to an embodiment, the invention concerns the pharmaceutical composition, further comprising at least one carrier.

According to an embodiment, the invention concerns the pharmaceutical composition, wherein said at least one carrier is a non-protein carrier and/or a protein carrier.

According to an embodiment, the invention concerns a use of the composition according to the invention, for treatment of a disease by IV injection.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment of a disease by direct injection at a site of inflammation.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment of a disease by inhalation.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment of a disease by oral delivery.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment of a disease by anal delivery.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment of a condition selected among a skin disease, Psoriasis, Arthritis, Asthma, Sepsis and inflammatory bowel disease.

According to an embodiment, the invention concerns the use of a composition of the invention for administration in a way selected among IV, IP, and IM.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment of Arthritis wherein the composition is injected directly at site of inflammation.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment of a condition selected among Gastrointestinal hyperresponsiveness, Food Allergy, Food intolerance and inflammatory bowel disease, wherein the composition is delivered orally.

According to an embodiment, the invention concerns the use of a composition of the invention for treatment Asthma where the composition is delivered by inhalation.

According to an embodiment, the invention concerns the use of a composition of the invention for coating of nanoparticles and biomaterials. The immune suppressive domain may aid in suppressing any immune response e.g. from a patient treated with or subjected to nanoparticles, e.g. for drug delivery or diagnostics, or biomaterials.

According to an embodiment, the invention concerns the use of a composition of the invention to aid in suppressing any immune response to nanoparticles or biomaterials.

According to an embodiment, the invention concerns the use of a composition of the invention to increase the half-life of nanoparticles or biomaterials in vivo in a patient.

According to an embodiment, the invention concerns a vaccine comprising an immune suppressive domain, optionally mutated, for systemic immune suppression.

According to an embodiment, the invention concerns a vaccine comprising an immune suppressive domain selected among Seqid 275 to 287 against PRRS.

According to an embodiment, the invention concerns a vaccine comprising a peptide, obtained by performing at least one mutation, insertion or deletion of an immune suppressive domain selected among Seqid 275 to 287.

According to an embodiment, the invention concerns a vaccine against PRRS comprising a mutated immunosuppressive domain selected among seqid 275 to seqid 287, subject to the proviso that the immunosuppressive properties of said domain have been abrogated.

According to an embodiment, the invention concerns a peptide having the sequence of the Immune Suppressive Domain according to the invention.

According to an embodiment, the invention concerns the peptide having the sequence of the Immune Suppressive Domain according to the invention, modified by a number of point mutations selected among 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.

According to an embodiment, the invention concerns the peptide having the sequence of the Immune Suppressive Domain according to the invention, modified by a number of point deletions selected among 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.

According to an embodiment, the invention concerns the peptide having the sequence of the Immune Suppressive Domain according to the invention, modified by a number of point insertions selected among 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.

According to an embodiment, the invention concerns the peptide according to the invention, capable of an inhibition selected among at least 5% inhibition of T-lymphocyte proliferation, at least 10%, at least 20%, such as at least 30%, at least 40%, at least 50%, such as at least 60%, such as at least 70% inhibition of T-lymphocyte proliferation, at least 75% inhibition of T-lymphocyte proliferation, at least 80%, such as at least 85%, at least 90%, such as at least 95%, at least 97%, such as at least 99%, and at least 100% inhibition of T-lymphocyte proliferation.

According to an embodiment, the invention concerns a peptide according to the invention, capable of suppressing the immune response in an animal, preferably according to the TPA model.

According to an embodiment, the invention concerns the use of a peptide according to the invention, for a use selected among any of the uses of the invention.

According to an embodiment, the invention concerns a method of treatment of an indication selected among the indications of the present application and the viral infections of Table 1 comprising administration of an effective amount of an entity selected among the Immune Suppressive Domains of the invention, the compositions of the invention, and the peptides of the invention.

The co-pending patent application PCT/DK2012/050381 provides a number of immunosuppressive domains. Table 1 is provided below. Sequences of the table are applicable for the purposes of the present invention. Vira of the table provide examples of relevant indications for the present invention.

TABLE 1 family genus Species (group) Species (Strain) Putative ISU as identified using the criteria described in this application fir udentification of immubosupprssive domains Peptides from domains from fusion proteins exhibiting immunosuppressive activity (ISU) Name of envelope attachment / fusion protein IU ggroup and fusion type Flavi-viridae Flavi-virus Aroa virus Bussuquara virus guape virus Naranjal virus seqid85 NRGWNNGCGLFGKG * * * * * * * * * * * * * * seqid7 GDAAWDFGSVGGVFNSLGK * * o * * * * o * * * * * oo * o * * envelope protein prME fusion pretein E Group 1 Type II Fusion mechanism Dengue virus Dengue 1 seqid8 GGTAWDFGSIGGVFTSVGK *o***************** seqid2 DRGWGNGCGLFGKG ************** seqid172 KGS SIGKMFESTYRGAKRMAILG Dengue 2 seqid9 GDTAWDFGSLGGVFTSVGK ****************o** seqid173 KGS SIGKMFEATARGARRMAILG seqid2 DRGWGNGCGLFGKG ************** Dengue 3 seqid174 KGSSIGQMFETTMRGAKRMAILG seqid2 DRGWGNGCGLFGKG ************** seqid204 GDTAWDFGSVGGVLNSLGK ******************* Dengue 4 seqid10 GETAWDFGSVGGLLTSLGK ************oo***** seqid173 KGSSIGKMFEATARGARRMAILG seqid2 DRGWGNGCGLFGKG ************** Japanese encephalitis virus group Japanese encephalitis virus seqid11 LGDTAWDFGSIGGVFNSIG ***o*************** seqid2 DRGWGNGCGLFGKG ************** Koutango virus seqid12 LGDTAWDFGSVGGIFTSLG seqid2 DRGWGNGCGLFGKG ************** Murray Valley encephalitis virus seqid13 LGDTAWDFGSVGGVFNSIG seqid2 DRGWGNGCGLFGKG ************** St. Louis encephalitis virus seqid11 LGDTAWDFGSIGGVFNSIG ******************* seqid2 DRGWGNGCGLFGKG ************** Usutu virus seqid14 LGDTAWDFGSVGGIFNSVG ******************* seqid2 DRGWGNGCGLFGKG ************** West Nile virus seqid15 LGDTAWDFGSVGGVFTSVG **********o******** seqid2 DRGWGNGCGLFGKG ************** Kokobera virus group Kokobera virus unclassified Kokobera virus group seqid16 IGDDAWDFGSVGGILNSVG seqid2 DRGWGNGCGLFGKG Modoc virus group Modoc virus seqid17 VGSAFWNSDQRFSAINLMD seqid18 DRGWGNGCALFGKG Cowbone Ridge virus Jutiapa virus Sal Vieja virus San Perlita virus mosquito-borne viruses Ilheus virus seqid84 LGDTAWDFGSVGGIFNSIG seqid2 DRGWGNGCGLFGKG Sepik virus seqid19 TGEHSWDFGSTGGFFASVG seqid2 DRGWGNGCGLFGKG Ntaya virus group Bagaza virus seqid20 LGDTAWDFGSVGGFFTSLG seqid2 DRGWGNGCGLFGKG Tembusu virus seqid83 LGDTAWDFGSVGGVLTSIG seqid2 DRGWGNGCGLFGKG Yokose virus seqid21 IGDDAWDFGSTGGIFNTIG seqid2 DRGWGNGCGLFGKG Rio Bravo virus group Apoi virus seqid22 SSAFWNSDEPFHFSNLISII seqid2 DRGWGNGCGLFGKG Entebbe bat virus seqid23 GDDAWDFGSTGGIFNTIGKA seqid2 DRGWGNGCGLFGKG Rio Bravo virus seqid24 SSAYWSSSEPFTSAGIMRIL seqid2 DRGWGNGCGLFGKG Saboya virus seqid18 DRGWGNGCALFGKG seqid25 GSSSWDFSSAGGFFGSIGKA Seaborne tick-borne virus group Meaban virus seqid26 GDAAWDFGSVGGFMTSIGRA seqid27 DRGWGNHCGLFGKG Saumarez Reef virus seqid28 GETAWDFGSAGGFFTSVGRG seqid27 DRGWGNHCGLFGKG Tyuleniy virus seqid29 GEAAWDFGSAGGFFQSVGRG seqid27 DRGWGNHCGLFGKG Spondweni virus group Zika virus seqid30 LGDTAWDFGSVGGVFNSLGK *************oo**o** seqid2 DRGWGNGCGLFGKG Kyasanur forest disease virus seqid31 VGEHAWDFGSVGGMLSSVG *************o***** seqid27 DRGWGNHCGLFGKG Langat virus seqid32 VLGEHAWDFGSVGGVMTSIG seqid27 DRGWGNHCGLFGKG Louping ill virus seqid33 IGEHAWDFGSAGGFFSSIG **********o***oo*o* seqid27 DRGWGNHCGLFGKG Omsk hemorrhagic fever virus seqid34 LGEHAWDFGSTGGFLSSIG seqid27 DRGWGNHCGLFGKG Powassan virus seqid35 VGEHAWDFGSVGGILSSVG *************o***** seqid36 DRGWGNHCGFFGKG ************* Royal Farm virus seqid27 DRGWGNHCGLFGKG Tick-borne encephalitis virus seqid37 IGEHAWDFGSAGGFLSSIG seqid38 IGEHAWDFGSTGGFLTSVG seqid39 IGEHAWDFGSTGGFLASVG seqid27 DRGWGNHCGLFGKG Yaounde virus seqid40 LGDTAWDFGSIGGVFTSLG seqid2 DRGWGNGCGLFGKG Yellow fever virus group Banzi virus seqid41 VGSSSWDFSSTSGFFSSVG seqid2 DRGWGNGCGLFGKG Bouboui virus seqid42 VGRSSWDFSSAGGFFSSVG seqid2 DRGWGNGCGLFGKG Edge Hill virus Uganda S virus Wesselsbron virus Yellow fever virus seqid43 MGDTAWDFSSAGGFFTSVG ***o*************** seqid2 DRGWGNGCGLFGKG unclassified Flavivirus Batu Cave virus Cacipacore virus Calbertado virus Cell fusing agent virus Chaoyang virus Chimeric Tick-borne encephalitis virus/Dengue virus 4 Culex theileri flavivirus Donggang virus Duck hemorrhagic ovaritis virus Flavivirus Aedes/MO-Ac/ITA/2009 Flavivirus Anopheles/PV-Am/ITA/2009 Flavivirus CbaAr4001 Flavivirus FSME Flavivirus Phlebotomine/76/Arrabida/2007 Gadgets Gully virus Greek goat encephalitis virus Jugra virus Kadam virus Kamiti River virus Kedougou virus Montana myotis leukoencephalitis virus Mosquito flavivirus Ngoye virus Nounane virus Phlebotomus flavivirus Alg_F19 Phlebotomus flavivirus Alg_F8 Quang Binh virus Russian Spring-Summer encephalitis virus Sokoluk virus Spanish sheep encephalitis virus T'Ho virus Tai forest virus B31 Tamana bat virus Tick-borne flavivirus Wang Thong virus Flavivirus sp. seqid44 NRGWGTGCFKWGIG seqid45 NRGWGTGCFEWGLG seqid2 DRGWGNGCGLFGKG Aedes flavivirus seqid45 NRGWGTGCFEWGLG seqid46 HVAGRYSKHGMAGIGSVWEDLVR Culex flavivirus seqid44 NRGWGTGCFKWGIG seqid47 VDKYRRFGTAGVGG Hepa civi rus Hepatitis C virus Hepatitis C virus genotype 1 a seqid3 GLIHLHQNIVDVQYLYG seqid175 PALSTGLIHLHQNIVDVQ E1/E2 Hepatitis C virus genotype 1b seqid48 GLIHLHRNIVDVQYLYG seqid176 PALSTGLIHLHRNIVDVQ Hepatitis C virus genotype 2 seqid49 GLIHLHQNIVDVQYMYG seqid175 PALSTGLIHLHQNIVDVQ Hepatitis C virus genotype 3 seqid175 PALSTGLIHLHQNIVDVQ seqid3 GLIHLHQNIVDVQYLYG Hepatitis C virus genotype 4 seqid175 PALSTGLIHLHQNIVDVQ seqid3 GLIHLHQNIVDVQYLYG Hepatitis C virus genotype 5 seqid50 GLIHLHQNIVDTQYLYG seqid177 PALSTGLIHLHQNIVDTQ Hepatitis C virus genotype 6 seqid175 PALSTGLIHLHQNIVDVQ seqid3 GLIHLHQNIVDVQYLYG All Hepatitis C virus seqid3 GLIHLHQNIVDVQYLYG Border disease virus Border disease virus - Border disease virus - X818 Border disease virus 1 Border disease virus 2 Border disease virus 3 Border disease virus isolates seqid51 NTTLLNGSAFQLICPYGWVGRVEC seqid52 SYFQQYMLKGQYQYWFDLE Bovine viral diarrhea virus 1 Bovine viral diarrhea virus 1-CP7 Bovine viral diarrhea virus 1-NADL Bovine viral diarrhea virus 1-Osloss Bovine viral diarrhea virus 1-SD1 Bovine viral diarrhea virus isolates and strains Bovine viral diarrhea virus type 1a Bovine viral diarrhea virus type 1b Pestivirus isolate 97-360 Pestivirus isolate Hay 87/2210 Pestivirus strain mousedeer Pestivirus type 1 isolates seqid53 NTTLLNGPAFQMVCPLGWTGTVSC seqid54 SYFQQYMLKGEYQYWFDLE Bovine viral diarrhea virus 2 (BVDV-2) Bovine viral diarrhea virus 2 Pestivirus sp. strain 178003 Pestivirus sp. strain 5250Giessen-3 Bovine viral diarrhea virus-2 isolate SCP seqid55 SLLNGPAFQMVCPQGWTGTIEC seqid56 DRYFQQYMLKGKWQYWFDLD Classical swine fever virus Classical swine fever virus Hog cholera virus strain Zoelen seqid57 TLLNGSAFYLVCPIGWTGVIEC seqid58 SYFQQYMLKGEYQYWFDLD unclassified Pestivirus Bovine viral diarrhea virus 3 seqid59 TLLNGPAFQLVCPYGWTGTIEC seqid60 DNYFQQYMLKGKYQYWFDLEATD Chamois pestivirus 1 seqid61 TLLNGSAFQMVCPFGWTGQVEC seqid62 DSYFQQYMLKGEYQYWFDLDAKD Porcine pestivirus isolate Bungowannah seqid205 TLLNGPAFQLVCPYGWTGTIECDSYYQQYII KSGYQYWFDLTAKD Unnclassified Flaviviridae Barkedji virus Canine hepacivirus AAK-2011 GB virus A Douroucouli hepatitis GB virus A GBV-A-like agents GB virus D GBV-C/HGV group GB virus C Hepatitis GB virus C-like virus Hepatitis GB virus B Lammi virus Marmoset hepatitis GB virus A Nakiwogo virus Turkey meningoencephalitis virus Togaviridae Alpha-virus Aura virus Barmah Forest virus Middelburg virus Ndumu virus Salmon pancreas disease virus Getah virus Mayaro virus Trocara virus EEEV complex seqid63 GVYPFMWGGAYCFCDTENTQVS **********o****o**o*o* seqid64 APFGCEIYTNPIRAENCAVGSIP *****o*ooo*o**oo*oo*oo* seqid65 SDFGGIATVKYSASKSGKCAVH o***oooooo*ooooo*o*oo* seqid66 FSTANIHPEFRLQICTSYVTCKGDCHPP *oooooooo*oooo*ooooo*ooo*o** WEEV complex Fort Morgan virus Highlands J virus Sindbis virus Western equine encephalomyelitis virus Whataroa virus VEEV complex Cabassou virus Mucambo virus Pixuna virus Venezuelan equine encephalitis virus seqid67 GVYPFMWGGAYCFCD *************** seqid68 GDCHPPKDHIVTHPQYHAQ ************o**o*o* seqid69 AVSKTAWTWLTS *********oo* SFV complex Bebaru virus O'nyong-nyong virus Ross River virus Semliki forest virus Una virus seqid63 GVYPFMWGGAYCFCDTENTQVS **********o****o**o*o* seqid64 APFGCEIYTNPIRAENCAVGSIP *****o*ooo*o**oo*oo*oo* seqid65 SDFGGIATVKYSASKSGKCAVH o***oooooo*ooooo*o*oo* seqid66 FSTANIHPEFRLQICTSYVTCKGDCHPP *oooooooo*oooo*ooooo*ooo*o** Chikungunya virus seqid67 GVYPFMWGGAYCFCD *************** seqid70 VHCAAECHPPKDHIVNY oo*o*o**o******** seqid71 PASHTTLGVQDISATAMSWV o****oo******o****** Rubivirus Rubella virus Rubella virus (strain BRD1) Rubella virus (strain BRDII) Rubella virus (strain Cendehill) Rubella virus (strain M33) Rubella virus (strain RN-UK86) Rubella virus (strain THERIEN) Rubella virus (strain TO-336 vaccine) Rubella virus (strain TO-336) Rubella virus (vaccine strain RA27/3) seqid72 ACTFWAVNAYSSGGYAQLASYFNPGGSYYK ***o*o****o**oo****o**o******o seqid73 QYHPTACEVEPAFGHSDAACWGFPTDT ***o*o*o*o****o********o*** seqid74 MSVFALASYVQHPHKTVRVKFHT ***oo*****o**o**o****** seqid159 ETRTVWQLSVAGVSC o*o* ********oo* seqid76 NVTTEHPFCNMPHGQLEVQVPP o*o*o**oo*o*o****o*oo* seqid77 DPGDLVEYIMNYTGNQQSRW ****o******o*o****** seqid78 GSPNCHGPDWASPVCQRHSPDCS ****o***o************** seqid79 RLVGATPERPRLRLV o***o**o**o**** seqid80 DADDPLLRTAPGP *oo********** seqid81 GEVWVTPVIGSQARKCGL oo*o**o**o*****o** seqid86 HIRAGPYGHATVEM oo***********o seqid87 PEWIHAHTTSDPWHP o**oooo*o***o*o seqid88 PGPLGLKFKTVRPVALPR ****o***o**o*oo*** seqid89 ALAPPRNVRVTGCYQCGTPAL oooo**o*o*o**o******* seqid90 EGLAPGGGNCHLTVNGEDVG ***o*****o**oo*o*oo* seqid207 LLNTPPPYQVSCGG ******o*o*o*** 46 seqid92 RASARVIDPAAQSFTGWYGTHT **o***oo*o************* seqid93 TAVSETRQTWAEWAAAHWWQLTLG o*******ooo*****o******* Bunya-viridae Hanta-virus (continued on next page) Amur virus Bayou virus Black Creek Canal virus Cano Delgadito virus Calabazo virus Catacamas virus Choclo virus Dobrava-Belgrade virus El Moro Canyon virus Hantaan virus Isla Vista virus Khabarovsk virus Laguna Negra virus Limestone Canyon virus Monongahela virus Muleshoe virus Muju virus New York virus Oran virus Playa de Oro virus Prospect Hill virus Puumala virus Rio Mamore virus Rio Segundo virus Saaremaa virus Seoul virus Sin Nombre virus Soochong virus Thailand virus Thottapalayam virus Topografov virus Tula virus seqid94 NPPDCPGVGTGCTACGVYLD **o****o********o*** seqid95 RKVCIQLGTEQTCKTIDSNDC *oo*o*o*o*oo**oo*o*** seqid96 DTLLFLGPLEEGGMIFKQWCTTTCQFGDPGD IM seqid97 GSFRKKCSFATLPSCQYDGNTVSG *o***o*o***o*o*ooo**oo** seqid98 ATKDSFQSFNITEPH **o****o**oooo* seqid99 GSGVGFNLVCSVSLTEC ******o*o*ooo**** seqid100 KACDSAMCYGSSTANLVRGQNT ****o*o***ooooo*o**o** seqid101 GKGGHSGSKFMCCHDKKCSATGLVAAAPHL ********o*o***ooo*ooo**o*oo*** seqid102 DDGAPQCGVHCWFKKSGEW ***o*o*ooo***oo**** Gn(G2)/Gc(G1) Ortho-bunya-virus Anopheles A virus Anopheles B virus Bakau virus Batama virus Bwamba virus Caraparu virus Kaeng Khoi virus Kairi virus Madrid virus Main Drain virus Marituba virus Nyando virus Oriboca virus Oropouche virus Sathuperi virus Shamonda virus Shuni virus Simbu virus Tacaiuma virus Tete virus Turlock virus unclassified Orthobunyavirus seqid103 KHDELCTGPCPVNINHQTGWLT *o*o***o**oooooooo*o*o seqid104 WGCEEFGCLAVSDGCVFGSCQD **o*oo**o*ooo**oo***** seqid105 GNGVPRFDYLCHLASRKEVIVRKC *o*ooo*ooo*oooo*ooooo*o* seqid106 SCAGCINCFQNIHC *o**ooooooooo* Akabane virus Sabo virus Tinaroo virus Yaba-7 virus Bunyamwera virus Batai virus Birao virus Bozo virus Cache Valley virus Fort Sherman virus Germiston virus Guaroa virus Iaco virus Ilesha virus Lokern virus Maguari virus Mboke virus Ngari virus Northway virus Playas virus Potosi virus Shokwe virus Tensaw virus Tlacotalpan virus Xingu virus California Encephalitis virus California encephalitis serogroup virus LEIV California encephalitis virus - BFS-283 Chatanga virus Inkoo virus Jamestown Canyon virus Jamestown Canyon-like virus Jerry Slough virus Keystone virus La Crosse virus Lumbo virus Melao virus Morro Bay virus San Angelo virus Serra do Navio virus Snowshoe hare virus South River virus Tahyna virus Trivittatus virus Caraparu virus Apeu virus Bruconha virus Ossa virus Vinces virus Manzanilla virus Buttonwillow virus Ingwavuma virus Mermet virus Marituba virus Gumbo Limbo virus Murutucu virus Nepuyo virus Restan virus Wyeomyia virus Anhembi virus BeAr328208 virus Macaua virus Sororoca virus Taiassui virus Phlebovirus Bujaru virus Candiruvirus Chilibre virus Frijoles virus Punta Tor_(└)Salehabad virus Sandflyfever Naples virus Uukuniemi viruso virus Rift Valley fever virus seqid107 KTVSSELSCREGQSYWT **oo**oo*o**o*o** seqidl08 GSFSPKCLSSRRC *******oooooo seqid109 ENKCFEQCGGWGCGCFNVNPSCLFVHT **o*o**o*oo*oo***ooo***o**o seqid110 WGSVSLSLDAEGISGSNSFSF **ooo*o**o*o*o*o*oo** seqid111 RQGFLGEIRCNSE *o*****o**oo* seqid112 AHESCLRAPNLVSYKPMIDQLEC *oo**oo**oooo*o*oo*ooo* seqid113 DPFWFERGSLPQTR **ooo*oo*o***o* seqid114 QAFSKGSVQADLTLMFD **ooo*ooo*oooooo* seqidll5 CDAAFLNLTGCYSCNAG *o*o*o*oo*****oo* seqid116 CQILHFTVPEVEEEFMYSC *ooo*ooo*ooooooo*o* seqid117 STVVNPKSGSWN *o*o**oooooo seqid118 FFDWFSGLMSWFGGPLK *o***oo*o**oooooo Unclassified Phelobvirus (continued on next page) Anhanga virus Arumowot virus Chagres virus Corfou virus Gabek Forest virus Itaporanga virus Phlebovirus Adria/ALB1/2005 Phlebovirus Adria/ALB5/2005 Phlebovirus AH12 Phlebovirus AH12/China/2010 Phlebovirus AH15/China/2010 Phlebovirus B105-05 Phlebovirus B151-04 Phlebovirus B43-02 Phlebovirus B68-03 Phlebovirus B79-02 Phlebovirus Chios-A Phlebovirus Cyprus Phlebovirus HB29/China/2010 Phlebovirus HN13/China/2010 Phlebovirus HN6/China/2010 Phlebovirus Hu/Xinyang1/China/2010 Phlebovirus Hu/Xinyang2/China/2010 Phlebovirus IB13-04 Phlebovirus JS2007-01 Phlebovirus JS24 Phlebovirus JS26 Phlebovirus JS3/China/2010 Phlebovirus JS4/China/2010 Phlebovirus JS6 Phlebovirus JSD1 Phlebovirus LN2/China/2010 Phlebovirus LN3/China/2010 Phlebovirus sandflies/Gr29/Spain/2004 Phlebovirus sandflies/Gr36/Spain/2004 Phlebovirus sandflies/Gr44/Spain/2004 Phlebovirus sandflies/Gr49/Spain/2004 Phlebovirus sandflies/Gr52/Spain/2004 Phlebovirus sandflies/Gr65/Spain/2004 Phlebovirus sandflies/Gr98/Spain/2004 Phlebovirus SD24/China/2010 Phlebovirus SD4/China/2010 Phlebovirus tick/XCQ-2011 Phlebovirus XLL/China/2009 Rio Grande virus Salobo virus Sandfly fever sicilian virus Sandfly Sicilian Turkey virus Utique virus Phlebovirus sp. Phlebovirus sp. Be An 24262 Phlebovirus sp. Be An 356637 Phlebovirus sp. Be An 416992 Phlebovirus sp. Be An 578142 Phlebovirus sp. Be Ar 371637 Phlebovirus sp. Co Ar 170255 Phlebovirus sp. Co Ar 171616 Phlebovirus sp. GML 902878 Phlebovirus sp. Pa Ar 2381 Phlebovirus sp. PAN 479603 Phlebovirus sp. PAN 483391 Phlebovirus sp. VP-161A Phlebovirus sp. VP-334K Phlebovirus sp. VP-366G Orthomyxoviridae Influenzavirus A Influenza A virus INFA H1 seqid119 GLFGAIAGFIEGGWTG seqid178 WTYNAELLVLLENERTLD seqid179 NAELLVLLENERTLDYHD INF F#2 DELTA6: seqid201 GLFGAAGFIENGWEG InFAHI-3: seq1d203 HA (Ha1/HA2) INFA H2 seqid120 GLFGAIAGFIEGGWQG seqid180 WTYNAELLVLMENERTLD seqid181 NAELLVLMENERTLDYHD INFA H3 seqid121 GIFGAIAGFIENGWEG seqid182 WSYNAELLVALENQHTID seqid183 NAELLVALENQHTIDLTD seqid4 GLFGAIAGFIENGWEG INFA H4 seqid122 GLFGAIAGFIENGWQG seqid182 WSYNAELLVALENQHTID seqid184 NAELLVALENQHTIDVTD INFA H5 seqid120 GLFGAIAGFIEGGWQG seqid180 WTYNAELLVLMENERTLD seqidl85 NAELLVLMENERTLDFHD INFA H6 seqid123 GIFGAIAGFIEGGWTG seqid119 GLFGAIAGFIEGGWTG seqid178 WTYNAELLVLLENERTLD seqid186 NAELLVLLENERTLDMHD INFA H7 seqid187 WSYNAELLVAMENQHTID seqid208 WSYNAELLVAMENQHLAD seqid4 GLFGAIAGFIENGWEG INFA H8 seqid124 GLFGAIAGFIEGGWSG seqid189 WAYNAELLVLLENQKTLD seqid190 NAELLVLLENQKTLDEHD INFA H9 seqid125 GLFGAIAGFIEGGWPG seqid124 GLFGAIAGFIEGGWSG seqid189 WAYNAELLVLLENQKTLD seqid190 NAELLVLLENQKTLDEHD INFA H10 seqid191 WTYQAELLVAMENQHTID seqid192 QAELLVAMENQHTIDMAD seqid4 GLFGAIAGFIENGWEG INFA H11 seqid125 GLFGAIAGFIEGGWPG seqid193 WSYNAQLLVLLENEKTLD seqid194 NAQLLVLLENEKTLDLHD INFA H12 seqid125 GLFGAIAGFIEGGWPG seqid189 WAYNAELLVLLENQKTLD seqid190 NAELLVLLENQKTLDEHD INFA H13 seqid125 GLFGAIAGFIEGGWPG seqid195 WSYNAKLLVLLENDKTLD seqid196 NAKLLVLLENDKTLDMHD INFA H14 seqid122 GLFGAIAGFIENGWQG seqid182 WSYNAELLVALENQHTID seqid184 NAELLVALENQHTIDVTD INFA H15 seqid187 WSYNAELLVAMENQHTID seqid188 NAELLVAMENQHTIDLAD seqid4 GLFGAIAGFIENGWEG INFA H16 seqid125 GLFGAIAGFIEGGWPG seqid197 WSYNAKLLVLIENDRTLD seqid198 NAKLLVLIENDRTLDLHD Influenzavirus B Influenza B virus All strains seqid126 GFFGAIAGFLEGGWEG seqid199 ISSQIELAVLLSNEGIIN seqid200 QIELAVLLSNEGIINSED Influenzavirus C Influenza C virus Paramyxoviridae Avulavirus Avian paramyxovirus 2 Yucaipa virus Avian paramyxovirus 3 Avian paramyxovirus 3b Avian paramyxovirus 4 Avian paramyxovirus 5 Avian paramyxovirus 6 Avian paramyxovirus 7 Avian paramyxovirus 8 Avian paramyxovirus 9 Newcastle disease virus Pigeon paramyxovirus 1 unclassified Avulavirus Avian paramyxovirus 10_Avian paramyxovirus duck/Miyagi/885/05 Avian paramyxovirus penguin/Falkland Islands/324/2007 Goosramyxovirus HZ Goose paramyxovirus JS/1/97/Go Goose paramyxovirus SF02 seqid127 GAIALGVATAAAVTAG oooo*o*oo*o*oo** F0 (F2/F1) Henipavirus Hendra virus Hendra virus horse/Australia/Hendra/1994 Nipah virus unclassified Henipavirus Bat paramyxovirus Eid.hel/GH45/2008 Morbillivirus Canine distemper virus Cetacean morbillivirus_Dolphin morbillivirus_Pilot whale morbillivirus Porpoise morbillivirus Measles virus Peste-des-petits-ruminants virus Phocine distemper virus Phocine distemper virus 1 Phocine distemper virus-2 Rinderpest virus Respirovirus Bovine parainfluenza virus 3 Porcine paramyxovirus strain Frost Porcine paramyxovirus strain Texas Human parainfluenza virus 1 Human parainfluenza virus 3 Simian Agent 10 Sendai virus unclassified Respirovirus Atlantic salmon respirovirus Guinea pig parainfluenza virus TS-9 Pacific salmon paramyxovirus Trask River 1983 Swine parainfluenza virus 3 Tursiops truncatus parainfluenza virus 1 Rubulavirus Human parainfluenza virus 2 Human parainfluenza virus 2 (strain Greer) Human parainfluenza virus 2 (strain Toshiba) Human parainfluenza virus 4 Human parainfluenza virus 4a Human parainfluenza virus 4b Mapuera virus Mumps virus Parainfluenza virus 5 Porcine rubulavirus Simian virus 41 unclassified Rubulavirus Porcine parainfluenza virus Tuhoko virus 1 Tuhoko virus 2 Tuhoko virus 3 unclassified Paramyxovirinae Atlantic salmon paramyxovirus Beilong virus Canine parainfluenza virus Chimeric human parainfluenza virus rPIV3-2 Fer-de-lance virus J-virus Menangle virus Mossman virus Murayama virus Ovine parainfluenza virus 3 Pacific salmon paramyxovirus Paramyxovirus GonoGER85 Recombinant PIV3/PIV1 virus Reptilian paramyxovirus Salem virus Salmo salar paramyxovirus Snake ATCC-VR-1408 paramyxovirus Snake ATCC-VR-1409 paramyxovirus Tioman virus Tupaia paramyxovirus Pneumovirus Human respiratory syncytial virus Human respiratory syncytial virus A Human respiratory syncytial virus (strain RSB1734) Human respiratory syncytial virus (strain RSB5857) Human respiratory syncytial virus (strain RSB6190) Human respiratory syncytial virus (strain RSB6256) Human respiratory syncytial virus (strain RSB642) Human respiratory syncytial virus (strain RSB6614) Human respiratory syncytial virus A strain Long LinkOut Human respiratory syncytial virus A2 Human respiratory syncytial virus B Human respiratory syncytial virus (subgroup B / strain 18537) Human respiratory syncytial virus (subgroup B / strain 8/60) Human Respiratory syncytial virus 9320 Human respiratory syncytial virus B1 Human respiratory syncytial virus S2 Human respiratory syncytial virus strain RSS-2 unclassified Human respiratory syncytial virus seqid128 FLGLILGLGAAVTAGVA ***oo**o*o*ooo*o* seqid129 TNEAWSLTNGMSVL **o*****o**o*** seqid130 VIRFQQLNKRLLE **o***o*o**** seqid131 REFSSNAGLT ****o***o* seqid132 MLTDRELTSIVGGM ***oo**o*oooo* seqid133 YVIQLPLFGVMDTDCW *oo***oo**o**o** seqid134 CLARADNGWYCHNAGSLSYFP **ooo*o**o*o****o*o** seqid135 DTLKSLTVPVTSRECN **oo***o*ooooo** seqid136 YDCKISTSKTYVSTAVLTTMG *o*o*o***ooo*oo*o*oo* seqid137 VSCYGHNSCTVIN *****ooo**oo* Seqid75 GIIRTLPDGCHYISNKGVDRVQVGNTVYYLS KEVGK ***o*ooo**o*o**o*o*o*o****o**oo *oo** seqid139 PLSFPDDKFDVAIRDVEHSINQTRTFLKASD QLL **o**o*o*ooo*oo*ooo***ooo*ooo** o** seqid140 KIMTSKTDISSSVITSIGAIVSCYG o*o***ooo*oo*o*oo*oo***** Bovine respiratory syncytial virus All strains seqid128 FLGLILGLGAAVTAGVA ***oo**o*o*ooo*o* seqid134 CLARADNGWYCHNAGSLSYFP **ooo*o**o*o****o*o** seqid133 YVIQLPLFGVMDTDCW *oo***oo**o**o** Metapneumovirus Avian metapneumo-virus All strains Human metapneumo-virus All strains Coronaviridae Coronavirinae Alphacoronavirus Alphacoronavirus 1 Coronavirus group 1b Human coronavirus 229E Human coronavirus NL63 Miniopterus bat coronavirus 1 Miniopterus bat coronavirus HKU8 Porcine epidemic diarrhea virus Rhinolophus bat coronavirus HKU2 Scotophilus bat coronavirus 512 unclassified Alphacoronavirus S (S1/S2) Betacoronavirus Betacoronavirus 1 Coronavirus group 2b Coronavirus group 2c Human coronavirus HKU1 Murine coronavirus Pipistrellus bat coronavirus HKU5 Rousettus bat coronavirus HKU9 Severe acute respiratory syndrome-related coronavirus recombinant SARSr-CoV SARS coronavirus Tylonycteris bat coronavirus HKU4 unclassified Betacoronavirus Gammacorona-virus Avian coronavirus Beluga Whale coronavirus SW1 unclassified coronaviruses Alpaca coronavirus CA08-1/2008 Bat coronavirus Bird droppings coronavirus Bovine respiratory coronavirus Chicken enteric coronavirus Coronavirus Anas Coronavirus oystercatcher/p17/2006/GBR Coronavirus red knot/p60/2006/GBR Ferret enteric coronavirus 1202 Ferret systemic coronavirus MSU-S Ferret systemic coronavirus WADL Guangxi coronaviridae Human coronavirus NO Human enteric coronavirus strain 4408 Kenya bat coronavirus Mink coronavirus strain WD1133 Parrot coronavirus AV71/99 Quail coronavirus Italy/Elvia/2005 Tai Forest coronavirus unidentified coronavirus unidentified human coronavirus seqid141 RSAIEDLLFDKVKLSDVG **oo****oo**ooo*o* seqid142 VPFYLNVQYRINGLGVT 0**00000**0**0*** seqid143 VLSQNQKLIANAFNNALHAIQ **00***0*000*00*000** seqid144 TNSALVKIQAVVNANA *oo**o*o*o***oo* seqid145 AEAQIDRLINGRLTALNAYVSQQL *oo******o***oo*oo*oo*** seqid146 SAAQAMEKVNECVKSQSSRINFCGNGNHIIS 0*00*00*00***00*00*00***0*0*00* seqid147 APYGLYFIHFNYVP **o*oo*o*oo*o* seqid148 LQEAIKVLNHSYINLKDIGTYEYYVKWPWYV W 00*00*0**0*000*000*00*0*0*****0 * seqid209 EVFAQVKQMYKT PTLKYFGGFNFSQIL seqid210 EVFAQVKQMYKT PAIKDFGGFNFSQIL Segid211 SFIEDLLFNKVTLADAGF Segid212 SAIEDLLFNKVRLSDVGF Seqid213 SLLEDLLFNKVKLSDVGF Seqid214 SAIEDLLFSKVKLADVGF Seqid215 SAIEDLLFDKVKLSDVGF Arena-viridae Arean-virus LCMV-Lassa virus (Old World) complex Ippy virus Lassa virus Lujo virus Lymphocytic choriomeningitis virus Mobala virus Mopeia virus seqid149 NALINDQLIMKNHLRDIMGIPYC *o**o***o*o***o*o**o*** seqid150 FTWTLSDSEGKDTPGGYCLT 00*000*00*000***0**0 seqid151 KCFGNTAIAKCNQKHDEEFCDMLRLFDFN ***0*000****00*00****000*000* seqid152 MLQKEYMERQGKTPLGLVDLFVFS *000*00**00**00*0*0000*0 GpC (Gp1/Gp2) Tacaribe virus (New World) complex Amapari virus Chapare virus Flexal virus Guanarito virus Junin virus Latino virus Machupo virus Oliveros virus Paraná virus Pichinde virus Pirital virus Sabiá virus Tacaribe virus Tamiami virus Whitewater Arroyo virus seqid150 FTWTLSDSEGKDTPGGYCLT 00*000*00*000***0**0 seqid151 KCFGNTAIAKCNQKHDEEFCDMLRLFDFN ***o*ooo****oo*oo****ooo*ooo* seqid152 MLQKEYMERQGKTPLGLVDLFVFS *000*00**00**00*0*0000*0 Hepadnaviridae Genus Orthohepadnavirus Hepatitis B virus HBV genotype A HBV genotype B HBV genotype C HBV genotype D HBV genotype E HBV genotype F HBV genotype G HBV genotype H Hepatitis B virus alphal L and M and S Where S mediates Hepatitis B virus LSH/chimpanzee Hepatitis B virus strain cpz Hepatitis B virus subtype adr Hepatitis B virus subtype adw Hepatitis B virus subtype adyw Hepatitis B virus subtype ayw seqid153 FNPLGFFPSHQLDPLF o***o*o*o*o*o*o* seqid154 ADWDKNPNKDPWP o*o*o*oo*oooo seqid155 MESITSGFLGPLLVLQAVFF oooooooo*ooooo**oooo seqid156 LLTRILTIPQSLDSWWTSLNFLGGA oooooo*oooo*oooo***o*o*oo seqid157 CPPTCPGYRWMC oo*o*****o*o seqid158 LFILLLCLIFLLVLLDYQ *oo*ooo*oo*oo*oooo Rhabdoviridae Dimarhabdovirus Ephemerovirus Bovine ephemeral fever virus seqid160 LDGYLCRKQKWEVTCTETWYFVTD *o*oo****o*ooo*o*****o*o seqid161 KYQIIEVIPTENEC o***o**o*oooo* seqid162 LKGEYIPPYYPPTNCVWNAIDTQE oo*oo*******oo*o**oooo** seqid163 IEDPVTMTLMDSKFTKPC ooo*oooooo**o*oo** seqid164 LHCQIKSWECIPV o**oo*o****o* seqid165 SHRNMMEALYLESPD *oo*oo*o*oo*o** seqid166 LTFCGYNGILLDNGEWWSIY o****oo**oooo****** seqid167 ELEHEKCLGTLEKLQNGE *****o**o*oo*oo*o* seqid168 LDLSYLSPSNPGKHYAY **o***o*oo**oo*** seqid169 IRAVCYYHTFSMNLD o**o*o*oo*oooo* Glyoprotein G Vesiculovirus Carajas virus Chandipura virus Cocal virus Isfahan virus Maraba virus Piry virus recombinant Vesiculovirus Spring viraemia of carp virus Vesicular stomatitis Alagoas virus Vesicular stomatitis Indiana virus Vesicular stomatitis New Jersey virus seqid170 EWKTTCDYRWYGPQYITHSI o*o****o*****o*o*o* seqid171 LGFPPQSCGWASVTT o****oo**oooooo seqid1 VQVTPHHVLVDEYTGEWVDSQFINGKC ooooo*o*oooo*o*o*o*oooooooo Lyssavirus Aravan virus Australian bat lyssavirus Duvenhage virus European bat lyssavirus 1 European bat lyssavirus 2 Irkut virus Khujand virus Lagos bat virus Mokola virus West Caucasian bat virus Rabies virus Rabies virus AB21 Rabies virus AB22 Rabies virus AVO1 Rabies virus BNG4 Rabies virus BNG5 Rabies virus China/DRV Rabies virus China/MRV Rabies virus CVS-11 Rabies virus ERA Rabies virus Eth2003 Rabies virus HEP-FLURY Rabies virus India Rabies virus Nishigahara RCEH Rabies virus Ontario fox Rabies virus Ontario skunk Rabies virus PM Rabies virus red fox/08RS-1981/Udine/2008 Rabies virus SAD B19 Rabies virus silver-haired bat-associated SHBRV Rabies virus strain Pasteur vaccin Rabies virus strain Street Rabies virus vnukovo-32 Thailand genotype 1 dog lyssavirus seqid5 GFTCTGVVTEAETYTNFVGYVT *o****o**o*oo*oooo*** seqid6 SLHNPYPDYRWLRTVKTT *ooooooooooo***o* Seqid138 ESLVIISPSVADLDPYDRSLHS *ooo***oooo*o**ooo Seqid91 CKLKLCGVLGLRLMDGT *ooo****oooo*ooo* Seqid206 ILGPDGNVLIPEMQSS o**o*ooo*******o seqid82 QHMELLESSVIPLVHPL *ooo**o*ooo**oo** unclassified Lyssavirus Bokeloh bat lyssavirus European bat lyssavirus Lyssavirus Ozernoe Shimoni bat virus Novirhabdovirus Hirame rhabdovirus Infectious hematopoietic necrosis virus Snakehead rhabdovirus Viral hemorrhagic septicemia virus unassigned Rhabdoviridae Bangoran virus Bimbo virus Bivens Arm virus Flanders virus Garba virus Klamath virus Malpais Spring virus Nasoule virus Ngaingan virus Ouango virus Sigma virus Tupaia virus Wongabel virus Filoviridae Lloviu virus (LLOV) Bundibugyo virus (BDBV; previously BEBOV) Reston virus (RESTV; previously REBOV) Sudan virus (SUDV; previously SEBOV) Tai Forest virus (TAFV; previously CIEBOV) Ebola virus (EBOV; previously ZEBOV) Marburg virus (MARV) Ravn virus (RAW) Seqid216 GAALGLAWIPYFGPAAE oo*o*oo***o***ooo seqid217 GAAVGLAWIPYFGPAAE Seqid218 GAAAGLAWIPYFGPAAE Seqid219 DLAAGLSWIPFFGPGIE Seqid220 HNAAGIAWIPYFGPGAE Lentivirisae Hiv1 Seqid221 AVGLGALFLGFLGAAGSTMGAAS oooo**ooo*o*oo*****o**o seqid222 LTLTGQARQLLS o***o*o*o*oo seqid223 GIVQQQSNLLQAIEAQQ o*****o***o*****o seqid224 GLGAMFLGFLGAAGSTMGAASLTLTVQARQL LS Seqid225 GIGAMFLGLLSAAGSTMSAAAITLTVQTRQL LS Seqid226 GIGAMFLGLLSAAGSTMGAAAITLTVQTRQL LS Seqid227 GIGAVFLGFLGAAGSTMGAASITLTVQARQL LS Seqid228 GVGALFLGFLSAAGSTMGAASITLTVQARQL LS Seqid229 GIGAMILGFLGAAGSTMGAASITLTVQARQL LS Seqid230 GLGAMFLGFLGAAGSTMGAASITLTVQARQL LS Seqid231 GFGAMFLGFLGAAGSTMGAASITLTVQARQL LS Seqid232 TLGAMFLGFLGAAGSTMGAASMTLTVQARQL LS Seqid233 GLGAVFLGFLGAAGSTMGAASITLTVQARQL LS Seqid234 TIGAMFLGFLGAAGSTMGAASITLTVQARRL LS Seqid235 TIGAMFLGFLGAAGSTMGAASMTLTVQARLL LS Seqid236 TLGAMFLGFLGAAGSTMGAASMTLTVQARLL FS Seqid237 TLGAMFLGFLGAAGSTMGAASLTLTVQARLL LS Seqid238 GVGAMFLGFLGAAGSTMGAASLTLTVQARQL LS Seqid239 GLGAMFLGFLGAAGSTMGAASITLTVQARLL LS Seqid240 TLGAVFLGFLGAAGSTMGAASLTLTVQARLL LS Seqid241 GIGAVFLGFLGAAGSTMGAASITLTVQARKL LS Seqid242 GIGALFLGFLGAAGSTMGAASVTLTVQARQL LS Seqid243 GLGALFLGFLGAAGSTMGAASVTLTVQARQL LS Seqid244 GIGAMFLGFLGAAGSTMGAASITLTVQARLL LS Seqid245 GIGAMFLGFLGAAGSTMGAASVTLTVQARLL LS Seqid246 AIGALFLGFLGAAGSTMGAASVTLTVQARLL LS Seqid247 TLGAMFLGFLGAAGSTMGAASLTLTVQARQL LS Seqid248 GIGALFLGFLGAAGSTMGAASMTLTVQARQL LS Seqid249 GIGAMFLGFLGAAGSTMGAASLTLTVQARQL LS Seqid250 GIGAVFLGFLGAAGSTMGAASMTLTVQARLL LS Seqid251 GIGALFLGFLGAAGSTMGAASLTLTVQARQL LS Seqid252 GIGAVFLGILGAAGSTMGAASITLTVQARQL LS Seqid253 GIGAVFLGFLGAAGSTMGAASVTLTVQARQL LF Seqid254 GLGAMFFGFLGAAGSTMGAASVTLTVQARQL LS Seqid255 GIGALFLGFLGAAGSTMGAASITLTVQARLL LS Seqid256 GLGALFVGFLGAAGSTMGAASITLTVQARQL LS Seqid257 GIGALFLGFLGTAGSTMGAASVTLTVQARQL LS Seqid258 GIGAMIFGFLGAAGSTMGAASITLTVQARQL LS Seqid259 GLGAVLLGFLGTAGSTMGAASLTLTVQVRQL LS Seqid260 GIGAVLFGFLGAAGSTMGAASITLTVQVRQL LS Seqid261 GLGALFLGFLGAAGSTMGAASLTLTGQARQL LS oo**ooo*o*oo*****o**oo***o*o*o* oo Seqid262 GTLGAMFLGFLGAAGSTMGAASMTLTVQARQ LL Seqid263 GTIGAMFLGFLGAAGSTMGAASITLTVQARR LL Seqid264 GTIGAMFLGFLGAAGSTMGAASMTLTVQARL LL Seqid265 IGALFLGFLGAAGSTMGAASVTLTVQARLLL SG Bovine lentivirus group Seqid266 AVGMVIFLLVLAIMAMTASVTAA ***oo**********o*o*oo** Equine lentivirus group Seqid267 FGISAIVAAIVAATAIAASA **o*ooo**********o*o Feline lentivirus group Seqid268 TLALVTATTAGLIGTTTGTSA Seqid269 HVMLALATVLSMAGAGTGATA Ovine/caprine lentivirus group Seqid270 GIGLVIMLVTMAIVAAAGAS *o***oo*oo***o*o***o Human immunodeficiency virus 2 Seqid271 GVMVLGFLGFLAMAGSAMGA ooo***o**oooo*oooooo Simian immunodeficiency virus Seqid272 GVFVLGFLGFLATAGSAMGA oooo**oo*o*oo**ooooo Simian immunodeficiency virus others Seqid273 GAIVLGLLGFLGLAGSAMG *ooooooo*o*ooo**ooo Ovine lentivirus Seqid274 GIGLVIVLAIMAIIAAAGAGLGVANAVQ Arteriviridae Porcint Reproductions og Respirations Syndrome (PRRS) PRRS Type I seqid275 SRKLGRSLIPHSCFWWLFLLC seqid276 GNGNSSTYQYIYNLTIC seqid277 GTAWLSTHFSWAVETFVLYHILSL seqid278 GFLTTSHFFDTLGLGAVSITGFC seqid279 RYAHTRFTNFIVDDRGRIHRW PRRS Type II seqid280 SNNNSSHIQLIYNLTLC seqid281 GTDWLAQKFDWAVETFVIFPVLTH seqid282 GALTTSHFLDTVGLATVSTAGYY seqid283 IYAVCALAALICFVIRLAKNC seqid284 VSTAGYYHGRYVLSSIYAVCALAALICFVIR L

All cited references are incorporated by reference.

The accompanying Figures and Examples are provided to explain rather than limit the present invention. It will be clear to the person skilled in the art that aspects, embodiments and claims of the present invention may be combined.

EXAMPLES Example 1: ELISA TNF-α ELISA assay

The supernatant from THP-1 cells treated with peptides was assayed on human TNF-α ELISA Max™ Deluxe Set (Biolegend, #430205). ELISA assay was performed according to the manufacturer’s protocol, as follows. Each incubation step was followed by sealing and shaking on the rotating table at 150-200 rpm, except the overnight incubation with the Capture Antibody, where plates were not shaken. One day prior running ELISA the 96-well assay plates were covered with the Capture Antibody, diluted 1:200 in 1x Coating Buffer (5x Coating Buffer diluted in ddH₂O). 100 µL of this Capture Antibody solution was added into all wells, sealed and incubated overnight (16-18 hrs) at 4° C. The next day all reagents from the set were brought to the room temperature (RT) before use. The plate was washed 4 times with minimum 300 µL Wash Buffer (1x PBS, 0,05% Tween 20) per well. The residual buffer in the following washing was removed by blotting the plates against the absorbent paper. Next 200 µL of the 1x Assay Diluent A (5x Assay Diluent A diluted in PBS pH = 7.4) was added for 1 h to block non-specific binding. While the plate was being blocked, all samples and standards (mandatory for each plate) were prepared. Standards and samples were run in triplicates. 1 mL of the top standard 250 pg/mL was prepared in 1x Assay Diluent A (1x AD) from the TNF-α stock solution (55 ng/ mL). The six two-fold serial dilutions of the 250 pg/mL top standard were performed, with the human TNF-α standard concentration: 250 pg/mL, 125 pg/mL, 62.5 pg/mL, 31.2 pg/mL, 15.6 pg/mL, 7.8 pg/mL and 3.9 pg/mL, respectively. 1x AD serves as the zero standard (0 pg/mL). After blocking the plate, washing was performed and 100 µL standards and samples were assayed in triplicates and incubated for 2 h in RT. Samples were not diluted, the whole supernatant from the THP-1 cells was assayed. After washing, 100 µL of the Detection Antibody was applied to each well, diluted 1:200 in 1x AD, and incubated for 1 hour. Plate was washed and followed by 30 minutes incubation with 100 µL of Avidin-HRP solution per well, diluted 1:1000 in 1x AD. The final washing was performed 5 times with at least 30 seconds interval between the washings, to decrease the background. Next 100 µL of the freshly mixed TMB Substrate Solution (10 mL per plate, 5 mL of each from 2 substrates provided in the set) was applied and left in the dark for 15 min. It needs to be observed to prevent signal saturation, positive wells turned blue. After incubation in the dark the reaction was stopped with 100 µL of 2N H₂SO₄ per well. Positive wells turned yellow. Absorbance was read at 450 nm and 570 nm (background) within 30 minutes. The data were analyzed in the Microsoft Excel 2010 program.

Example 2: Effect of Peptides on Cytokine and Transcription Factor mRNA Level Measurements by QPCT Cell Culture

THP-1 cells were cultured in RPMI medium supplemented with 10% fetal bovine serum 2 mM glutamine, 100 U/ml penicillin, 100 µg/ml streptomycin and used before passage 10. Cells were cultured in a humidified atmosphere in 95% air, 5% CO₂ at 37° C.

RNA Isolation

RNAs from THP-1 cells were isolated using RNeasy ® Plus Mini Kit (Qiagen, DK) according to the manufacturer’s protocol. Quality and integrity of isolated RNA samples was controlled by determining A₂₆₀/A₂₈₀, A₂₆₀/A₂₃₀ absorbance ratios and 28S/18S rRNA ratios followed by rigorous DNase I (Ambion® TURBO DNA-free™) treatments.

Quantitative Real-Time RT-PCR

500 ng total RNA was used for cDNA synthesis using iScript™ cDNA synthesis kit (Bio-Rad, CA USA) according to the instructions of the manufacturers. Real-time Q-PCR analysis was performed using a LightCycler 480 cycler (Roche Diagnostics, DK). 2 µl of cDNA (from a total 20 µl reaction volume) was used in a 20 µl reaction. The real-time Q-PCR reactions contained 10 µl SybrGreen 2x Master Mix (Roche Diagnostics, DK), 2 µl forward primer (5 pmol/µl), 2 µl reverse primer (5 pmol/µl) and 4 µl water. After initial denaturation at 95° C. for 10 minutes, PCR amplifications were performed for 45 cycles. The primer sequences used in this study are shown in Table 1. The crossing point (CP) for each transcript was measured and defined at constant fluorescence level in Light Cycler 480 software. The mRNA levels for the test gene were normalized to the RPL13a or RPL37A value and relative quantification was determined using the ΔCt model presented by PE Applied Biosystems (Perkins Elmer, Foster City, CA USA). For quantitative real-time RT-PCR analysis, standard deviations were calculated and a T-test was employed to compare expression levels. P-values ≤ 0.05 were considered statistically significant.

Target gene/primer name Primer sequence 5′-3′ IL-2 β forward GTGGCAATGAGGATGACTTGTTC (SEQ ID NO:288) IL-2 β reverse TAGTGGTGGTCGGAGATTCGTA (SEQ ID NO:289) IL-6 forward AGCCACTCACCTCTTCAGAAC (SEQ ID NO:290) IL-6 reverse GCCTCTTTGCTGCTTTCACAC (SEQ ID NO:291) IL-10 forward GTGATGCCCCAAGCTGAGA (SEQ ID NO:292) IL-10 reverse CACGGCCTTGCTCTTGTTTT (SEQ ID NO:293) TNF-alpha forward CTGCTGCACTTTGGAGTGAT (SEQ ID NO:294) TNF-alpha reverse AGATGATCTGACTGCCTGGG (SEQ ID NO:295) NF-κB forward TGAGTCCTGCTCCTTCCA (SEQ ID NO:296) NF-κB reverse GCTTCGGTGTAGCCCATT (SEQ ID NO:297) RPL13a forward CATCGTGGCTAAACAGGTACTG (SEQ ID NO:298) RPL13a reverse GCACGACCTTGAGGGCAGCA (SEQ ID NO:299) RPL37A forward ATTGAAATCAGCCAGCACGC (SEQ ID NO:300) RPL37A reverse AGGAACCACAGTGCCAGATCC (SEQ ID NO:301)

Treatment of Cells/Induction of Cytokines

Pro-and anti-inflammatory cytokine gene expression was analyzed in un-differentiated THP-1 cells, designed as THP-1 monocytes. LPS is widely used as a potent and prototypical inducer of cytokine production in innate immunity which begins with the orchestration of monocytes. Pathogen associated molecular patterns (PAMPs), like lipopolysaccharide (LPS), play a pivotal role in initiation of variety of host responses caused by infection with Gram-negative bacteria. Such action leads to systemic inflammatory response, for instance up-regulation of pro-and anti- inflammatory cytokines, resulting in secretion of cytokine proteins into the blood stream.

THP-1 cells (1.0 x 10⁶) were cultured in a 24-well tissue culture plate (Corning). Cells were cultured with stimulant LPS at 1 µg/ml with or without indicated peptides (at the indicated concentrations) for 4 h. LPS and peptides concentrations were chosen according to our preliminary optimization studies. RPMI 1640 medium containing 10% fetal bovine serum, 2 mM glutamine, 100 U/ml penicillin, 100 µg/ml streptomycin was used as a control. To investigate gene expression and cytokine secretion cells were harvested at 4 h time point, while cell-free culture supernatants were collected and stored at -80° C. The time point of 4 h has been chosen based on the previously published gene expression and cytokine secretion kinetics of THP-1 monocytes stimulated with LPS¹. The experiments were performed by two independent biological replications, started from a new batch of cells.

1. Wasaporn Chanput, Jurriaan Mes, Robert A.M. Vreeburg, Huub F.J. Savelkoul and Harry J. Wichers. Transcriptional profiles of LPS-stimulated THP-1 monocytes and macrophages: a tool to study inflammation modulating effects of food-derived compounds. Food Funct., 2010, 1, 254-261.

Example 3

Inflammatory shock as a consequence of LPS release remains a serious clinical concern. In humans, inflammatory responses to LPS result in the release of cytokines and other cell mediators from monocytes and macrophages, which can cause fever, shock, organ failure and death. Here we present data that show that pretreatment of cells with INF F#2 results in a decrease in the release of cytokines including pro-inflammatory cytokines such as TNFalpha and IL-6. Therefore, treatment of patients, in the risk of developing sepsis, with INF F#2 could act beneficially to decrease production of proinflammatory cytokines and hereby lessen the risk of developing shock, organ failure and death. See FIG. 8 .

The content of the ASCII text file of the sequence listing named “Sequence-Listing-as-filed-12397-0802”, having a size of 257 kb and a creation date of 13 Dec. 2022, and electronically submitted via EFS-Web on 13 Dec. 2022, is incorporated herein by reference in its entirety.

References

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Denner 1994: Denner J, Norley S, Kurth R. The immunosuppressive peptide of HIV-1: functional domains and immune response in AIDS patients. AIDS. 1994 Aug;8(8):1063 72.

Harrell 1986: Harrell RA, Cianciolo GJ, Copeland TD, Oroszlan S, Snyderman R. Suppression of the respiratory burst of human monocytes by a synthetic peptide homologous to envelope proteins of human and animal retroviruses. J Immunol. 1986 May 15;136(10):3517-20.

Kleinerman 1987: Kleinerman ES, Lachman LB, Knowles RD, Snyderman R, Cianciolo GJ. A synthetic peptide homologous to the envelope proteins of retroviruses inhibits monocyte-mediated killing by inactivating interleukin 1. J Immunol. 1987 Oct 1;139(7):2329-37.

Mangeney 1998: Mangeney M, Heidmann T. Tumor cells expressing a retroviral envelope escape immune rejection in vivo. Proc Natl Acad Sci USA. 1998 Dec 8;95(25):14920-5.

[Haraguchi 1995: Haraguchi S, Good RA, James-Yarish M, Cianciolo GJ, Day NK. Induction of intracellular cAMP by a synthetic retroviral envelope peptide: a possible mechanism of immunopathogenesis in retroviral infections. Proc Natl Acad Sci USA. 1995 Jun 6;92(12):5568-71.

Haraguchi 1995a: Haraguchi S, Good RA, James-Yarish M, Cianciolo GJ, Day NK. Differential modulation of Th1-and Th2-related cytokine mRNA expression by a synthetic peptide homologous to a conserved domain within retroviral envelope protein. Proc Natl Acad Sci USA. 1995 Apr 11;92(8):3611-5. Erratum in: Proc Natl Acad Sci U S A 1995 Sep 12;92(19):9009

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1. Pharmaceutical product comprising an immune suppressive domain from a virus fusion protein as an active substance, wherein said immune suppressive domain is from a virus of the Orthomyxoviridae family.
 2. The pharmaceutical composition according to claim 1, wherein said pharmaceutical composition further comprises at least one pharmaceutically acceptable carrier, preservative, buffer, and/or surfactant.
 3. The pharmaceutical composition according to claim 1, wherein said immune suppressive domain is from a virus of the Influenza virus A genus.
 4. The pharmaceutical composition according to claim 1, wherein said immune suppressive domain comprises SEQ ID NO: 4 and/or SEQ ID NO:
 287. 5. The pharmaceutical composition according to claim 1, wherein said immune suppressive domain is connected to at least one additional immune suppressive domain to form a dimer.
 6. The pharmaceutical composition according to claim 5, wherein said dimer is a homodimer and comprises at least two immune suppressive domains with SEQ ID NO. 4, wherein said immune suppressive domains are cross-linked by a disulfide bond at the N-terminal or the C-terminal.
 7. A pharmaceutical composition comprising an immunosuppressive polypeptide that is a dimer formed by two peptides comprising SEQ ID NO: 4 as an active substance subject to at least one of the following provisos: (i) said pharmaceutical composition is a parenteral, subcutaneous or oral formulation; (ii) said pharmaceutical composition is an injection liquid or infusion liquid; (iii) said pharmaceutical composition comprises a pharmaceutically acceptable carrier selected from solid, semisolid and liquid; (iv) said pharmaceutical composition is a suspension, solution, emulsion, gel, cream, or powder; (v) said pharmaceutical composition comprises 0.5-25% by weight of said peptides in solution; or (vi) said two peptides comprise SEQ ID NO: 4 and an additional cysteine at the C-terminal or N-terminal end of SEQ ID NO: 4, wherein said cysteine residues crosslink the two peptides via a disulfide bond.
 8. The pharmaceutical composition according to claim 7, wherein said pharmaceutical composition is selected from a parenteral composition, a subcutaneous formulation, and an oral composition.
 9. The pharmaceutical composition according to claim 7, wherein said pharmaceutical composition is suitable for IV, oral, parenteral, intraperitoneal, subcutaneous or intramuscular administration.
 10. A pharmaceutical composition according to claim 7, wherein said pharmaceutical composition is packaged in unit-dose or multi-dose sealed containers, and/or packaged in ampoules and/or vials.
 11. The pharmaceutical composition according to claim 7, wherein said pharmaceutical composition is a vaccine.
 12. The pharmaceutical composition according to claim 7 obtainable by freeze-drying or which is suitable to be stored in a freeze-dried (lyophilized) condition.
 13. The pharmaceutical composition according to claim 7 comprising a pharmaceutically acceptable carrier, preservative, buffer, and/or surfactant.
 14. A pharmaceutical composition according to claim 7, wherein one or more amino acid residues in said polypeptide are modified by in vitro or in vivo chemical derivatization, wherein said chemical derivatization is selected from acetylation, carboxylation, glycosylation and phosphorylation, or wherein said polypeptide comprises blocking groups and wherein said blocking groups are either coupled to the N-terminus or used in place of the N-terminal amino acid residue of said polypeptide and/or coupled to the C-terminus or used in place of the C-terminal amino acid residue of said polypeptide.
 15. The pharmaceutical composition according to claim 7, wherein the two peptides comprise a cysteine residue at a C-terminal end of SEQ ID NO.
 4. 16. The pharmaceutical composition according to claim 7, wherein each of the two peptides consists of SEQ ID NO.
 287. 17. The pharmaceutical composition according to claim 7, wherein said immune suppressive domains are cross-linked by a disulfide bond at the N-terminal or the C-terminal.
 18. The pharmaceutical composition according to claim 7, wherein said dimer is a homodimer.
 19. The pharmaceutical composition of claim 7, wherein said composition contains from 0.5 to 25% by weight of the active substance in solution.
 20. A peptide comprising SEQ ID NO.
 287. 